Amperex High Power Klystrons

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NORTH AMER1( PHILIPS 11111131 Electron tubes

Ampere, Electronic Corporation Hicksville , New York 11802 Book T3 1986

High -power klystrons - HIGH -POWER KLYSTRONS

page Selection guide

U.H.F. power klystrons 1

Continuous -wave high -power klystrons 1

Pulsed power klystrons 1

S.H.F. power klystrons. 1

General List of symbols 5 Definitions 8 Waveguide data 9 Flange designations 10 General operational recommendations klystrons 13 Rating system 17

Device data (alpha -numerically) 19

Index of type numbers 192 - DATA HANDBOOK SYSTEM

Our Data Handbook System comprises more than 60 books with specifications on electronic components, subassemblies and materials. It is made up of four series of handbooks:

ELECTRON TUBES BLUE

SEMICONDUCTORS RED

INTEGRATED CIRCUITS PURPLE

COMPONENTS AND MATERIALS GREEN

The contents of each series are listed on pages iv to viii. The data handbooks contain all pertinent data available at the time of publication, and each is revised and reissued periodically. differ from those published in the preceding edition they are indicated with arrows in the page margin. Where application information is g yen it is advisory and does not form part of the product specification. Condensed data on the preferred products of Philips Electronic Components and Materia's Division is given in our Preferred Type Range catalogue (issued annually). Information on current Data Handbooks and on how to obtain a subscription for future issues is available from any of the Organizations listed on the back cover. Product specialists are at your service and enquiries will be answered promptly.

iFebruary 1984 iii }

ELECTRON TUBES (BLUE SERIES)

The blue series of data handbooks comprises:

T1 Tubes for r.f. heating

T2a Transmitting tubes for communications, glass types

T2b Transmitting tubes for communications, ceramic types

T3 Klystrons

T4 Magnetrons for microwave heating

T5 Cathode-ray tubes Instrument tubes, monitor and display tubes, C.R. tubes for special applications

T6 Geiger-MUller tubes

T8 Colour display systems Colour TV picture tubes, colour data graphic display tube assemblies, deflection units

T9 Photo and electron multipliers

T10 Plumbicon camera tubes and accessories

T11 Microwave semiconductors and components

T12 Vidicon and Newvicon camera tubes

T13 Image intensifiers and infrared detectors

T15 Dry reed switches

T16 Monochrome tubes and deflection units Black and white TV picture tubes, monochrome data graphic display tubes, deflection units

iv October 19851 i SEMICONDUCTORS (RED SERIES)

The red series of data handbooks comprises:

S1 Diodes Small -signal silicon diodes, voltage regulator diodes (< 1,5 WI, voltage reference diodes, tuner diodes, rectifier diodes

S2a Power diodes

S2b Thyristors and triacs

S3 Small -signal transistors

S4a Low -frequency power transistors and hybrid modules

S4b High -voltage and switching power transistors

S5 Field-effect transistors

S6 R.F. power transistors and modules

S7 Surface mounted semiconductors

S8a Light -emitting diodes

S8b Devices for optoelectronics Optocouplers, photosensitive diodes and transistors, infrared light -emitting diodes and infrared sensitive devices, laser and fibre -optic components

S9 Power MOS transistors

S10 Wideband transistors and wideband hybrid IC modules

S11 Microwave transistors

S12 Surface acoustic wave devices

S13 Semiconductor sensors

February 1986 v 1

INTEGRATED CIRCUITS (PURPLE SERIES)

The purple series of data handbooks comprises:

EXISTING SERIES Superseded by:

IC1 Bipolar ICs for radio and audio equipment ICOIN

IC2 Bipolar ICs for video equipment ICO2Na and ICO2Nb

IC3 ICs for digital systems in radio, audio and video equipment ICI:YIN, ICO2Na and ICO2Nb

IC4 Digital integrated circuits CMOS HE4000B family

IC5 Digital integrated circuits - ECL ICOBN EC L10 000 (GX family), ECL100 000 (HX family), dedicated designs

IC6 Professional analogue integrated circuits ICO3N and Supplement to ICI 1N

IC7 Signetics bipolar memories

IC8 Signetics analogue circuits ICIIN

IC9 Signetics TTL logic ICO9N and IC15N

ICIO Signatics Integrated Fuse Logic ( I FL) IC13N

IC11 Microprocessors, microcomputers and peripheral circuitry IC14N

vi March19861 NEW SERIES

ICO1N Radio, audio and associated systems (published 1985) Bipolar, MOS

ICO2Na Video and associated systems (published 1985) Bipolar, MOS Types MAB8031AH to TDA I 524A

ICO2Nb Video and associated systems (published 1985) Bipolar, MOS Types TDA2501 to TEA1002

ICO3N Integrated circuits for telephony (published 1985)

ICO4N HE4000B logic family CMOS

ICO5N HE4000B logic family - incased ICs (published 1984) CMOS

ICO6N' High-speed CMOS; PC74HC/HCT/HCU (published 1986) Logic family

ICO7N High-speed CMOS; PC54/74HC/HCT/HCU - uncased ICs Logic family

ICO8N ECL 10K and 100K logic families (published 1984)

ICO9N TTL logic series (published 1984)

IC1ON Memories MOS, TTL, ECL

IC11N Linear LSI (published 1985)

Supplement Linear LSI (published 1986) to IC11N IC12N Semi -custom gate arrays & cell libraries ISL, ECL, CMOS

IC13N Semi -custom (published 1985) Integrated Fuse Logic

IC14N Microprocessors, microcontrollers & peripherals (published 1985) Bipolar, MOS

IC15N FAST TTL logic series (published 1984)

Note Books available in the new series are shown with their date of publication.

Supersedes the ICO6N 1985 edition and the Supplement to ICO6N issued Autumn 1985.

Mach 1986 vii COMPONENTS AND MATERIALS (GREEN SERIES)

The green series of data handbooks comprises:

C1 Programmable controller modules PLC modules, PC20 modules

C2 Television tuners, coaxial aerial input assemblies, surface acoustic wave filters

C3 Loudspeakers

C4 Ferroxcube potcores, square cores and cross cores C5 Ferroxcube for power, audio/video and accelerators

C6 Synchronous motors and gearboxes

C7 Variable capacitors

C8 Variable mains transformers

C9 Piezoelectric quartz devices

C10 Connectors

C11 Varistors, thermistors and sensors

C12 Potentiometers, encoders and switches

C13 Fixed resistors

C14 Electrolytic and solid capacitors

C15 Ceramic capacitors

C16 Permanent magnet materials

C17 Stepping motors and associated electronics C18 Direct current motors

C19 Piezoelectric ceramics

C20 Wire -wound components for TVs and monitors C21Assemblies for industrial use HNI L FZ/30 series, NORbits 60-, 61, 90 -series, input devices C22 Film capacitors

To be issued shortly. viii October 1985 L_SELECTION GUIDE

U.H.F. POWER KLYSTRONS type status cooling output power, peak sync. frequency range kW MHz

YK1001 M FA 11 470 to 860 YK1002 M W, FA 11 470 to 860 YK1151 M FA 25 470 to 860 YK1190 M V/VC/W 45 470 to 610 YK1191 M V/VC/VV 45 590 to 720 YK1192 M V/VC/W 45 710 to 860 YK1198 M V/VC/VV, FA 60 c.w. 600 to 800 YK1220 C V/VC/W, FA 16.5 470 to 860 YK1223 P V/VCAN, FA 16.5 470 to 860 YK1230 C MC/VC FA 27 470 to 860 YK1233 P V/VCAN, FA 27 470 to 860 YK1263 P V/VCAN, FA 58 470 to 810 YK1265 P V/VC/VV, FA 64 470 to 810 YK1295 C V/VC/W, FA 58 470 to 610 YK1296 C V/VC/W, FA 58 590 to 720 YK1297 C V/VCAN, FA 58 710 to 860

HIGH -POWER KLYSTRONS

outputpower type status cooling c.w. pulse centre frequency kW kW MHz

YK1240 P W - 330 1300 YK1250 P W 400 - 999.3 YK1300 P W 600 - 499.7 YK1301 P W 800 - 499.7 YK1302 P V,FA 800 - 508.6 YK1303" P V,FA 1000 - 508.6 YK1305 P W 350 499.7 YK1350 P W 1000 - 352.21

PULSED POWER KLYSTRONS type status cooling output power gain zrequency kW dB MHz

YK1110 C W 6000 30 2998 ± 5 YK1510 P W 20000 44 S -band YK1511 P W 20000 44 S -band YK1512 P W 20000 44 S -band YK1600 N W 35000 53 2998.5

S.H.F. POWER KLYSTRONS type status cooling output power gain frequency range kW dB MHz

YK1210 C FA 1.15 50 11800 to 12200

COOLING: FA = forced air; W = water; V = vapour; VC = vapour condensation. Data available on request.

January 1986 1 CLASSIFICATION The devices are classified as follows: N = New type. Recommended for new equipment design. Data sheets contain advance Information and specifications are subject to change without notice. P = Preferred type. Recommended for equipment design; production quantities available at date of publication. C = Current type. No longer recommended for equipment design; ava lable for equipment production and for use in existing equipment. M = Maintenance type. No longer recommended for equipment production; available for maintenance of existing equipment. O = Obsolescent type. Available until present stocks are exhausted. Obsolescent types of which all stocks are exhausted are called obsolete; any data still published on these types is for reference purposes only. GENERAL

GENERAL

LIST OF SYMBOLS

1. Symbols denoting electrodes and electrode connections

Anode a

Accelerator electrode acc Collector electrode coil Filament or heater

Filament or heater tap fc

Grid 9 Tube pin which must not be connected externally i.c. Cathode

Resonator res Helical electrode

2. Symbols denoting voltages Remarks a. In the case of indirectly heated tubes the voltages on the various electrodes are with respect to the cathode; in the case of directly heated, d.c. fed tubes, with respect to the negative side of the filament; and in the case of directly heated, a.c. fed tubes, with respect to the electrical centre of the filament, unless otherwise stated. b. The symbols quoted below represent the average values of the voltages concerned, unless otherwise stated.

Anode voltage Va

Anode voltage in cut-off or in cold condition Vao Accelerator voltage Vacc Supply voltage of tube electrodes Vb Collector voltage Vcoll Filament or heater voltage Vf Filament or heater starting voltage Vf0 Voltage between focusing electrode and cathode Vfob Grid voltage V9 A.C. input voltage Vi Inverse voltage Vinv Voltage between cathode and heater Vkf A.C. output voltage Vo Peak value of a voltage VP Resonator voltage Vres Voltage on helical electrode Vk

December 1985 5 GENERAL

3. Symbols denoting currents Remarks a. The positive electrical current is directed opposite to the direction of the electron current. b. The symbols quoted below represent the average values of the currents concerned, unless otherwise stated.

Anode current la Accelerator current lacc Collector current 'coil Filament or heater current If Filament or heater starting current Ifo Peak filament or heater starting current IfpI fsurge Grid current 19

Cathode current lk

Peak value of a current I

Resonator current Tres

Current to helical electrode Ix

4. Symbols denoting powers Anode dissipation Wa Collector dissipation Wcoll A.C. driving power Wdr Grid dissipation w9 Input power Wi

D.C. anode supply power Wia Peak input power Wip Output power Wo Peak output power Wop Resonator dissipation Wres

5. Symbols denoting capacitances Measured on the cold tubes.

Capacitance between anode and all other elements except control grid Ca Capacitance between anode and grid (all other elements being earthed) Cag

Capacitance between anode and cathode (all other elements being earthed) Cak Capacitance between a grid and all other elements except anode Cg Capacitance between a grid and cathode (all other elements being earthed) Cgk

6 December 1985 GENERAL

6. Symbols denoting resistances External a.c. resistance in anode lead or matching resistance Ra Filament or heater resistance in cold condition Rfo External resistance in a grid lead R9 Internal resistance of a tube Ri External resistance in a cathode lead R k External resistance between cathode and heater Rkf

7. Symbols denoting various quantities Bandwidth Noise factor Frequency Pulse repetition rate 'imp Power gain Magnetic field strength Height above sea level Pressure drop of cooling air or cooling water Ap Required air flow or water flow for cooling Transconductance Temperature of anode or anode block Ta Ambient temperature Tamb Averaging time of current or voltage tav Inlet temperature of cooling air or cooling water Ti Pulse duration timp Outlet temperature of cooling air or cool ng water To Time of rise of voltage try Cathode preheating time, also called waiting time; the minimum period of time during which the heater or filament voltage should be applied before the application of electrode voltages try dV OV Rate of rise of voltage dt - Atry Voltage standing -wave ratio VSWR Reflection coefficient a Duty factor 6 Efficiency Wavelength X Amplification factor Temperature, relative

1IDecember 1985 7 GENERAL

TUBES FOR MICROWAVE EQUIPMENT DEFINITIONS

B Bandwidth. Of/AT The temperature coefficient Of/AT is the change of frequency with temperature. 'imp Pulse repetition rate. Afp The pulling figure Afp is the difference between the rriaximam and minimum frequencies, reached when the phase angle of the load with a VSWR of 1,5 is varied from 00 to 3600. H Magnetic field strength. timp The pulse duration timp is defined as the time interval between the two points on the current pulse at which the current is 70% of the smooth peak current (see Fig.11. ?Min WI

Fig. 1Current pulse.

The smooth peak is the maximum value of a smooth curve through the average of the fluctuation over the top portion of the pulse. t" The time of rise of voltage t" is defined as the time interval between points of 10 and 90 per cent of the smooth peak value measured on the leading edge of the voltage pulse. Ta Temperature of anode or anode block. VSWR The voltage standing -wave ratio in a waveguide is the ratio of the amplitude in the electrical field at a voltage maximum to that at an adjacent minimum.

dVa/dt Unless otherwise stated the rate of rise of voltage dVa/dt is defined by the steepest or tangent to the leading edge of the voltage pulse above 80% of the smooth peak value AVa/Atry (see Fig. 2/.

VI,

Fig. 2 Voltage pulse.

The duty factor b is the ratio of the pulse duration to the time between corresponding points of two successive pulses.

8 December 1985 RECTANGULAR WAVEGUIDE DATA AND DESIGNATIONS WAVEGUIDE Al TENUATION in dElint FREQUENCYTE,. mode 153-IECRANGE WAVEGUIDE BRITISH DESIGNATION RG IAN /U BAND Width Inn* 153.IEC crosssectionHeight width and height Tolerance on Width Outer cross. HeightWAVEGUIDE 153- EC width and height Tolerancesection on Frequency for copper Theoretical 153-IEC waveguid Maximum lowestTheoretical to highest C.power W. rating" frequency 1.14- GR. 1.73 153-1ECR 18 14 WGSTAND. 6 WRRETMA 650 brass 69 alum. 103 PREFIX DL 129165 5410 rnm 6482 7755 mat 033 ± 133169 6016 met 86 61 Inn. 020 i GHz I36 0 00522 value 0 007value 120 MW -170 145-1 220 2.111 R 22 WG 7 WR 430510 104 105 -- 109 22 54 61 026 11378 5868 6783 020 174 0 0097000749 00010 013 75 -110 2.802.17- - 72- 3.953.30 R 3226 WGWC 10 9A8 WR 340WR 284 112 48- 113 75 -S 7286 1436 3443 0418 0017022 14 90 4276 20 3847 1024 0017020 14 3261206 12 0 01380189 0 025018 23452 2 - 75- 348 2 3.943.22 - 519400 7.05 R 584840 WGWC 11A1312 WR 187229159 49- -95 CGA 404758 173955 202229 193149083 0080012 095 5061 804243 64 232532 444033 00810012 095 557473387 0 043103550249 00560 046032 07909416 -132- 2 2 8.575.384.84- - - 999 0.I7 R 8470 WG 1514 WR 112137 5150- 106 68- HI 2834 49985 1215 624799 005'0 078 3138 7510 1519 0588 0 057070 646789 0 07940576 00075 103 035056 - 07110 8.27.00 - - 12.511.00 R - 100 WOWG 1716 - WAWR 102 90 -52 320 67 MXT 192225 05086090 101295 160 9 525 0 046125038 21252916 4059 1216 217006 0050 125 118 -984 0 133110 - 0 143 - 017020033 --046 0029 43 11.9 - 18.0914- ISA R 140120 180 WG 1819 WAWR 516275 -91 - P 1215 954799 64777 899 0026003 1417 9983 851993 005 174142 0 238176 - 0012 080 - 0 107 - 023- 016 21.717.814.5 - 22.033.0297 RA 220260 WG 2120 WR 3442 -53 121 - - 10 668 8 636 4 318 0 02002' 1012 6770 635 0 05 2621 1 1 0 435370 - 00043 034 - 00058 048 32.9264 - 40.050.1 R 500320R 400 WG 242322 WRWA 221928 - - - 4 77557 112690 23 3885562 845 00200 020 6819 14772 442488559 0050 05 47139531 6 0 58310 060815 --- 00022 011014 -- 00 031020 - 0015 49839.2 - -59.8 75.8 R 620 WG 25 WR 15 - - - 3 759 11880 549 0 020 579 3 91 005 59 9 1 52 - 0 0063 - 0 0090 73.080.5 -112.0- 91A R 1200900740 WG 282726 WR 1012 8 -- - - 23099 032540 1 016270 00.0211 020 4.57513 330358 005 111 0 ea726 6 382274203 - 0 003003180042 - 0 004100260060 114.0 -173092.2 -1400 R 1400 WG 29 WA 7 - - - 1 651 0 826 406 305 005 136 3 5 21 - 0 0012 - 0.0017 CD - - - - C31 lEC Recommendations are obtainable trorn GENEVA.1.Central rue de Office Varembe Switzerland of the international Electrotechnical Commission ------based on breakdown of air of(safety 15.000 factor volts of per appros cm 2 at sea level) - GENERAL

FLANGE DESIGNATIONS

FLANGE DESIGNATION

FOR PLAIN FLANGE CHOKEFLANGE WAVEGUIDE 1AN AN 153 - IEC 154 IEC UG/U 154 - IEC UG/U BrassAluminium BrassAluminium

R 14 POP 14 417A 418A

R 18 POP 18

R 22 PDR 22 435A 437A

R 46 PDR 26 553 554

UER 32 PDR 32 R 32 53 584 CAR 32 54A PAR 32 UAR 32 585A

R 40 UER 40PDR 40

PAR 48 PDR 48 R 48 149A 407 CAR 48 4068 UAR48UER 48 148C PAH 58POP 58 R 58 CAR 58 UAR 58UER 58

PAR 70 PDR 70 R 70 344 441 CAR 70 UAR 70 UER 70 343B 440B PBR 84PDR 84 R 84 51 138 UBR84UER 84 CBR 84 528 1378 PBR 100PDR 100 R 100 UBR 100UER 100 135 CBR 100 408 1368

R 120

R 140 PBR 140UBR 140 419 CBR 140 541A R 180

R 220 PBR 220 UBR 220 PCR 220 595 597 CBR 220 596A 598A

R 260 PCR 260

R 320 PBR 320 PCR 320 UBR 320 599 CBR 320 600A

R 400 PCR 400 383

R 500 PCR 500PAR 500

R 820 PCR 620PFR 620 385

R 740 PCR 740PFR 740 387

R 900 PCR 900PFR 900

R 1200 PC R ' 200 PFR 1200

10 May19851 GENERAL

IEC

Waveguide flanges covered by IEC recommendation shall be indicated by a reference number comprising the following information: a. the number of the present IEC publication. b. the letter "IEC". c. a dash. d. a letter relating to the basic construction of the flange

P = pressurable C = choke, pressurizable U = unpressurizable e. a letter for the type according to the drawing. Flanges with the same letter and of the same waveguide size can be mated. f. the letter and number of the waveguide for which the flange is designed.

UNPRESSURABLE PRESSURABLE CHOKE

14 14 1

32 32 32 = cisi 1 70 Type A Type 0 70 Type A 70 Type A Type E 84 84 84 100 too

120 'O os o o' c = = Cf 0 0 0 G, 0 0, Type B e Typo B Typo 0 320 320 320 Type C 500 620

(0 11 Type F 1200 1

IEC Recommendations are obtainable from :

Central Office of the International Electrotechnical Commission 1, rue de Varembe GENEVA, Switzerland

May 1985 11 .! GENERAL

GENERAL OPERATIONAL RECOMMENDATIONS KLYSTRONS

1. GENERAL 1.1 Data The characteristic data, operational data, capacitance values and curves apply to an average tube which is characteristic of the type of tube in question.

1.2 Reference point of the electrode voltages If not otherwise stated the electrode voltages are given with respect to the cathode.

1.3 Operational data The operational data stated in the data sheets do not relate to any fixed setting instructions. They should rather be regarded as recommendations for the effective use of the tube. On account of the tolerances prevailing, deviations from the settings stated may occur. It is also possible to use other settings, for which purpose the graphs can be used for findiig the operational data, or for which purpose interpolation between the settings stated can be performed.If one wishes to deviate from the settings recommended in the data sheets, one should take great care not to exceed the permissible limiting values. If appreciable deviations occur, the manufacturer should be consulted. A general rule for multi -cavity klystrons is that the accelerator electrode voltage and/or the focusing electrode voltage must be adjusted so that the cathode current stated will flow.

1.4 D.C. connections At all times there should be a d.c. connection between each electrode and the cathode. If necessary, limiting values have been stated for the resistance of these connections.

1.5 Mounting and removal The instructions relating to each type of tube can be found in the data sheets and the "Instructions for operation and maintenance". The mounting and removal should be effected with extreme care to avoid damage to the tube. This also applies to rejected tubes, where claims are made under guarantee. Ferromagnetic parts must not be used in the vicinity of klystrons equipped with a permanent magnet, as this might have a detrimental effect on the operation of the klystron. If necessary, the ceramic insulators and windows must be carefully cleaned, as dirt may damage the klystron on account of local overheating. Naturally the flange of the output cavity must also be thoroughly cleared so as to prevent arcing. The "Instructions for operation and maintenance" should in all cases be followed.

1.6 Accessories Perfect operation of the tubes can only be guaranteed if use is made of the accessories which the manufacturer designed for the tube.

December 1985 13 GENERAL

1.7 Supply leads The supply leads to the connections and terminals must be of such a quality that no mechanical stresses, due to differences in temperature or other causes, can occur.

1.8 Danger of radiation In general the absorption in the tissues of the body, and hence the danger, is the greater the shorter the wavelength of the h.f. radiation for equal output. The output of klystrons may be so high that injuries (in particular of the eye) can be inflicted. Klystrons operated at a high voltage (exceeding 16 kV) may, moreover, emit X-rays of appreciable intensity, which call for protection of the operators.

2. LIMITING VALUES 2.1 Absolute limiting values In all cases the limiting values stated are absolute maximum or minimum values. They apply either to all settings or to the various modes of operation. The values stated should in no case be exceeded, neither on account of mains voltage fluctuations and load variations, nor on account of production tolerances in the various building elements (resistors, capacitors, etc.) and tubes, or as a result of meter tolerances when setting the voltages and currents. Every limiting value should be regarded as the permissible absolute maximum independent of other values. It is not permitted to exceed one limiting value because another is not reached. For instance, one should not allow the limiting value of the collector current to be surpassed while reducing the collector voltage below the permissible limiting value. If in special cases it should be necessary to exceed a specific limiting value, it is advisable to consult the tube manufacturer, as otherwise no claims can be made.

2.2 Protective circuit To prevent the limiting values of voltages, currents, outputs and temperatures from being exceeded, fast -operating protective circuits must be provided.

2.3 Drift current The limiting value indicated for the drift current is an arithmetical mean value.

3. NOTES ON OPERATION 3.1 Operational data and variations When developing electrical equipment the spread in the tube data must be taken into account; if necessary, the tube tolerances can be applied for. With respect to the spread in the operational data and the average values stated in the data sheets it is recommended that a certain margin be allowed for in the output and input powers when designing equipment intended for series production.

3.2 Input power, required driving power In the data sheets the power stated is the input power Wdr fed to the irput cavity and measured between the circulator and this cavity with a 50 -ohm resistor serving as a substitute for the load presented by the cavity.

3.3 Output power As a general principle the effective output power is stated.

14 March 1985 General operational recommendations GENERAL

3.4 Sequence of application of the electrode voltages With multi -cavity klystrons the electrode voltages must be connected in the order given in the operating instructions.

3.5 Drift current When the klystron is driven by an a.m. signal (for instance a video signal), the drift current fluctuates with the modulation. Consequently, the power supply unit must be designed so as to be suitable for the peak values occurring, which may be appreciably higher than the arithmetical mean values stated.

4. HEATING 4.1 Type of current Klystrons can be heated by means of either standard alternating current or direct current. At other frequencies the tube manufacturer should be consulted.

4.2 Adjusting the heater voltage The heater voltage generally governs the adjustment of the heating, while the heater current may deviate from its nominal value within fixed tolerances. The heater voltage should be maintained as accurately as possible. For measuring the heater voltage a r.m.s. voltmeter is required. This meter must be directly connected to the filament terminals of the tube and have an inaccuracy < 1,5% in the voltage range concerned. The indicated measuring value should lie in the uppermost third of the scale.

4.3 Switching on the heater current If the data sheet does not contain special data concerning the heater current during switch -on, the tube may be switched on at full heater voltage. If maximum values are stated for the heater current during switch -on, they relate to the absolute maximum instantaneous value under unfavourable conditions. In the case of a.c. supply this value will occur if the tube is switched on at the maximum amplitude of the highest mains voltage. It is possible to calculate the maximum current during switch -on if the cold resistance and the relationship between the heater current and the heater voltage is !clown. In practice a heater transformer more or less acting as a leakage transformer is mostly used for limiting the starting current, or a choke coil or resistor is connected in series with the primary of the heater transformer. This choke coil or resistor can be short- circuited by a relay whose action is delayed by about 15 seconds. By means of a calibrated oscilloscope it can be checked whether the starting current remains within the permissible limits; the supply lead may, if necessary, be used as measuring resistance.

5. COOLING 5.1 Forced -air cooling It is essential that the faces of tubes that are to be cooled by an air -blast should be hit as evenly as possible by the air stream, so as to prevent large differences in temperature which may give rise to mechanical stresses. In many cases (in particular with the large types of tubes) an additioral air stream must be directed to the metal -to -ceramic sea s. The cooling air is usually supplied from a fan via an insulating duct. This air should be filtered, so that all impurities and moisture are removed; in addition to this the radiator must be cleaned at regular intervals. The data concerning tie cooling can be found in the data sheets. The cooling must be switched on together with the heating. After the klystron has been switched off cooling air must be supplied for some time; this period depends on the size of the tube and the load. If the cooling of whatever part of the tube is interrupted or if the quantity of cooling air is too small, the collector voltage and the heating must be switched off auto- matically.

IiDecember1985 15 GENERAL

5.2 Water cooling With water-cooled klystrons the cooling equipment is rigidly attached to the tube. If the equipment should be live, the cooling water must be supplied through insulating pipes, of sufficient length. The water cooling and air cooling for other parts of the tube must be switched on together with the heating. The cooling -water circuit must be arranged so that the water always enters at the bottom, no matter how the tube is mounted. If the pumps should be out of operation, the water jackets) of the tube must always be full. In that case after -cooling may in general be done away with. In many cases the metal -to -glass or metal -to -ceramic seals require additional cooling by a low -velocity air flow. If the cooling -water supply or additional air cooling should fail, the collector voltage and heating must immediately be switched off. Further cooling data can be found in the data sheets. The specific resistance of the cooling water must be minimum 20 kf2cm, the temporary hardness must be maximum 6 German degrees of hardness. In principle distilled water should be used in the circulation cooler; to reduce the corrosive effect of the distilled water about 700 mg of 24% hydrazin hydrate and 700 mg sodium silicate must be added per litre. The pH -value should range from 7 to 9. If frost is to be expected, a standard glycol based antifreeze for cars, like Glysantin should be added.

5.3 Vapour cooling The conversion of water of 100 °C to steam of 100 °C requires an energy of 2256 kJ/R. This energy is extracted from the collector which by this means is cooled very effectively. The cooling system may be designed as a closed circuit where the steam isducted upwards or downwards to the applied heat exchanger. Due to a strong deposit of minerals during the continued variation of the aggregate state, the use of distilled water is absolutely necessary. When commencing operation a multiple change of the complete cooling water is recommended to dispose deteriorations of the systems. The loss of coolant during operation is very low (1 f per week approxl. It is obvious, that a vapour cooling system is advantageous only in stationary assemblies and for high dissipation levels. This, however, yields another advantage of vapour cooling. The energy, generated in the heat exchanger, can be used very effectively i. e. for heating purposes.

6. STORAGE Klystrons may only be stored in their original packing and according to the instructions, so as to avoid damage. For fitting, the tubes must be removed from the packing and directly inserted into the support. In all cases the "Instructions for operation and maintenance" must be adhered to. In the case of prolonged storage the vacuum of high -power klystrons should be checked at intervals of about three months and improved if necessary, both being possible with the aid of the built-in getter ion pump and a suitable power supply/test unit. During this operation the heater supply should preferably be turned on slowly.

16 March19851 RATING SYSTEM

(in accordance with IEC Publication 134)

ABSOLUTE MAXIMUM RATING SYSTEM Absolute maximum ratings are limiting values of operating and environmental concitions applicable to any electronic device of a specified type as defined by its published data, which should not be exceeded under the worst probable conditions. These values are chosen by the device manufacturer to provide acceptable serviceability of the device, taking no responsibility for equipment variations, environmental variations, and the effects of changes in operating conditions due to variations in the characteristics of the device under consideration and of all other electronic devices in the equipment. The equipment manufacturer should desigr so that, initially and throughout life, no absolute maximum value for the intended service is exceeded with any device under the worst probable operating conditions with respect to supply variation, equipment component variation, equipment control adjustment, load variations, signal variation, environmental conditions, and variations in characteristics of the device under consideration and of al other electronic devices in the equipment.

Februa-y 1983 17

HIGH -POWER KLYSTRONS

MAINTENANCE TYPES YK1001 YK1002

U.H.F. POWER KLYSTRONS

Power amplifier klystrons in metal -ceramic construction for the frequency band 470 MHz to 860 MHz designed for four external resonant cavities, beam focusing by means of permanent magnets, continuously operating getter -ion pump and operation with a depressed collector potential. These klystrons are intended for use as u.h.f. power amplifier in vision and/or sound transmitters for the TV bands IV and V.

QUICK REFERENCE DATA

Frequency range 470 to 860 MHz Power output 11 kW Power gain 30 dB Cooling YK1001: air-cooled drift tubes and air-cooled collector YK1002: air-cooled drift tubes and water-cooled collector

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by a.c. or d.c. Cathode dispenser type Heater voltage Vf 7.5 to 8.0 V During operation the applied heater voltage should not fluctuate more than ± 3%. It is advised to operate the klystron at 8 to 8.5 V (including mains fluctuations) during the first 300 hours. The heater voltage should then be reduced to 7.5 to 8.0 V. Heater current If 32 (G 361 A The heater current should never exceed a peak value of 80 A when applying an a.c. heater voltage or 65 A when applying a d.c. heater voltage. Cold heater resistance Rfo 28 m0 Waiting time tw min. 180 s

GETTER -ION PUMP POWER SUPPLY Pump voltage, unloaded (cathode reference) 4.0 kV Internal resistance approx. 300 kci

December 1985 21 YK1001 ) MECHANICAL DATA v!ewI Dimensions in mm - 75

1. view I U

cavity 1

sect ion A -B

cavity 2

C --

section C -0 cavity 3

'JIMA "S. 20,52

cavity < ,,,d-ot a E -r rnattOrs9 4 tem section E- F

21 T 175:1jto es.

12tto3 174 si-wi tcollector drawn 10 I_ go 00 722 814 rotated for 90° section G -H

Fig. 1.

22 December 1985 U.H.F. power klystrons YK1002

MECHANICAL DATA

Dimensions in mm 6iitne to 75+t

vi.w 1 1300-+

e 8

cavity I

a 41.

cavity 2

section C-0 cavity 3

' Ft MeV

cavity & nri 2 F

130stit section E -F 121103-. mt.

03 connection cooling water B20 DIN 2370

I section G -H vi via en n7,5 Fig. 2. I December 1985 23 YK1001

MECHANICAL DATA (continued) Dimensions in mm

830 365 520

TE 1065 A

TE 1066 A Of .1TE 1067 A TE 1065 B or E

i_TE 1066 A

rd Of TE 1067A in in TE 1065 E

1066 A

Of TE 1057A agio.t TE 1066 0 - irsuirmaidl or TE 10670 ti TE 1065 D

Fig. 3

24 December 1985 U.H.F. power klystrons YK1001 YK1002

COOLING Except collector, applicable up to an air -inlet temperature Ti of 40 °C and an altitude of 2500 m (values refer to air inlet). Cathode base air, q = approx. 0.5 m3/min Accelerating electrode air, q = approx. 0.5 m3/min Drift tubes 1, 2 and 3 air, q = approx. 1.0 m3/min each Drift tube 4 air, q = approx. 1.5 m3/min Drift tube 5 forced air, q = approx. 1.5 m3/min (.1p = 900 Pa = 9 mbar) Cavity TE1066D or TE1067D forced air, q = approx. 2.0 m3/min

( = 900 Pa = 9 mbar) Collector YK1001 forced air, see cooling curves Figs 5, 6 and 7 Collector YK1002 water, see cooling curves Figs 9 and 10

MOUNTING Vertical, cathode up. In order to prevent distortion of the magnetc focusing field ferromagnetic material should not be used within a radius of 35 cm from the tube axis. All connections should be free from strain.

MASS (net) YK1001 approx. 55 kg YK1002 approx. 45 kg Total mass of accessories approx. 125 kg

PRODUCT SAFETY 1. X-radiation Correct operation of the tube can be guaranteed only if a set of accessories, approved by the tube manufacturer, is used. The operating tube generates X-rays which can penetrate the ceramic parts of the tube envelope. In order to reduce the radiation at any accessible points to an officially acceptable, non -dangerous level the tube must be shielded and any possible radiation path blocked by at least 1 mm of brass or an equivalent depth of non-magnetic X-ray absorbing material. The proper use of accessories will provide the necessary shielding.

2. R. F. radiation R.F. power may be emitted through apertures other than the normal output coupling (for example r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

IDecember 1985 25 YK1001 YK1002

ACCESSORIES Heater connector type 40649 Heater/cathode connector type 40649 Focusing electrode connector type 40634 Accelerating electrode connector type 40634 Collector connector type 40634 Getter ion pump connector type 55351 Magnet unit for ion pump type TE1053 Set of five pairs of focusing magnets type TE1065 (2xA, 2x8, 2xC, 2xD, 2xE) Set of four cavities for 470 MHz to 790 MHz type TE1066 (3xA, lxD) or Set of four cavities type TE1067 (3xA, 1xD) for 700 MHz to 860 MHz 2 magnet field adaptor plates for collector (YK1001 only) type TE1073 Recommended circulators (optional) 470 to 600MHz 272216201551 (T100/IV-N) 600 to 800MHz 272216201561 (T100/V-N) 790 to 1000 MHz 272216203261 (T100/V-3-14)

coll TE 1073" focusing magnets TE 1065 D drift tube 5 cavity TE 1066 0 or TE 1067 D

drift tubed cavity 3 TE 1066A or TE 1067A

TE 1065E drift tube 3 cavity 2 TE 1066 A or TE 1067A

TE 1065 B E drift tube 2 cavity 1 TE 1066 A or TE 1067A

TE 1065 A drift tube 1

getter -ion pump If the klystron is used under TV transposer conditions replace 2xB by 2xE. Operation for vision and sound trans- f fk mitter without depressed collector in722 CU voltage. Fig. 4.

26 December 1985 U.H.F. power klystrons YK1001 YK1002

LIMITING VALUES (Absolute maximum rating system) Heater voltage max. 8.5 V Cathode voltage max. -22 kV Cathode voltage at zero current max -25 kV Depressed collector voltage max 7 kV min. 0.5 kV Cathode current max 2.3 A Accelerating electrode voltage max. -25 kV Series resistance in accelerating electrode ci-cuit max. 20 min. 10 Negative focusing electrode voltage' max 700 V min. 100 V Drift tube current" Collector dissipation max 40 kW

Load VSWR max 1.5 (14d13) Pump voltage max. 4.5kV Pump current (see Fig. 8.) max 15 mA Temperature of cathode base and accelerating electrode max 125 °C drift tubes 1, 2 and 3 max 80°C drift tubes 4 and 5 max 150 °C resonator 4 max 125 °C collector seal YK1001 max. 200°C Collector body YK1001a max 300°C outlet cooling water YK1002 max 75 °C inlet cooling air max 40°C

The power supply must be preloaded with min. 10 mA at 500 V.

For limiting values of various operating conditions see next page and Fig. 11.

In safeguard this temperature limit the air outlet temperature should be measured in at least two places; one 50 mm and one 150 mm from the upper collector plate and 50 mm from the cooling fins; the cooling data of collector are minimum values.

...1 December 1985 27 YK1001 YK1002

MAXIMUM VALUES of drift tube current For vision transmitter without level dependent cut-out threshold without depressed collector voltage max. 80mA with depressed collector voltage max. 130mA For vision transmitter with level dependent cut-out threshold without depressed collector voltage for 0 to 7 kW output power, peak sync. max. 40mA with depressed collector voltage for 0 to 7 kW output power, peak sync. max. 60mA without depressed collector voltage for full output power max. 100mA with depressed collector voltage for full output power max. 200mA For vision and sound transmitter fed from the same power supply and without level dependent cut-out threshold without depressed collector voltage max. 100mA with depressed collector voltage max. 160 mA For vision and sound transmitter fed from the same power supply and with level dependent cut-out threshold without depressed collector voltage for 0 to 7 kW output power, peak sync. max. 60mA with depressed collector voltage for 0 to 7 kW output power, peak sync. max. 80 mA without depressed collector voltage for full output power max. 120 mA with depressed collector voltage for full output power max. 250 mA

28 December 1985 U.H.F. power klystrons YK1001 YK1002

TYPICAL OPERATING CONDITIONS As 11 kW vision transmitter (CCIR-G standard) notes in the frequency range 470 MHz to 790 MHz 1, 2 without depressed with depressed collector voltage collector voltage Cathode voltage -18.0 -13.5 kV 3 Depressed collector voltage -0.5 -5.0 kV Accelerating electrode voltage 0 0 V 4

Neg. focusing voltage ,--- 400 400 V 5

Drift tube current, static :-.-_ 25 30 mA

black level --:-. 40 80 mA 6 Cathode current 1.9 1.9 A

Output power, peak sync. 11 11 kW Drive power see Fig. 12.

Linearity without compensation .- ,_ 80 80 % 7 Sync. compression < 45/25 45/25 8 V.S.B. suppression < -20 -20 dB 9 Noise with reference to black level < -46 -46 dB 10

Differential gain .-:-. 5 5 deg 11

As 2.2 kW and 4.4 kW TV sound amplifier Cathode voltage -18.0 -18.0 -13.5 -13.5 kV 3 Depressed collector voltage -0.5 -0.5 -5.0 -5.0kV Accelerating electrode voltage -7.5 -5.5 -7.5 -5.5 kV 4

Neg. focusing voltage r--- 400 400 400 400 V 5

Drift tube current ',-- 40 50 50 70 mA 6 Cathode current 0.7 1.0 0.7 1.0 A Output power 2.2 4.4 2.2 4.4 kW Drive power < 0.5 0.5 0.5 0.5 W

As 2.1 kW amplifier for television transposer service Cathode voltage -15 kV 3 Depressed collector voltage 5.0 kV Neg. focusing voltage = 400 V 5 Drift tube current 60 mA 6 Cathode current 2.2 A Output power, peak sync. 2.1 kW Drive power see Fig. 12 Intermodulation products < -51 dB 12

I December 1985 29 YK1001 YK1002

Notes 1. With the appropriate focusing magnets TE1065, cavities TE1066 and a circulator between the driver and input cavity. A precorrection of the level dependent frequency response up to 2 dB must be provided. 2. In case of failure the beam voltage must be switched off and made to drop below 5% of its nominal value within 500 ms of the failure. 3. Fluctuations of the beam voltage up to ± 3% will not damage the tube; to meet the signal -transfer quality requirements the nominal beam voltage should not vary more than ± 1%. 4.It is recommended that this voltage be obtained from a voltage divider between cathode and ground, which should carry a quiescent current of minimum 3 mA. 5.The focusing electrode voltage should be adjustable from 100 V to 500 V; a setting range from 100 V to 700 V is recommended. 6.At black level, to be focused for minimum drift tube current. If necessary to obtain the required signal -transfer quality, a deviation of maximum 10% from this minimum current is permitted. The limiting value, see Fig. 11, must however, not be exceeded. 7.Measured with a sawtooth voltage with amplitude between 17 and 75% of the peak sync value, on which is superimposed a 4.43 MHz sinewave with a 10% peak -to -peak value. 8.Calculated from (1 Vblack - /Vsync'- in / (1-Vblack/Vsync)out 9.Measured with 10 to 75% modulation without compensation; V.S.B. filter between driving stage and klystron. 10.Produced by the klystron itself; without hum from power supplies. 11.Without compensation. 12.Without compensation, see German Bundespost 176 Pfl 2 or AR D-Pflichtenheft 5/2. Three - tone test method (vision carrier -8 dB, sound carrier -7 dB, sideband signal -16 dB with respect to peak sync = 0 dB(.

30 December 1985 U.H.F. power klystrons YK1001 YK1002

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Fig. 6.

Decerr ber 1985 31 YK1001 YK1002

4 72599291 - (100 kPa 1bar) Ap k Pa)

020 30 40 50 6C 70 80 qmir, 1m3/min) Fig. 7 Ratio of cooling air pressure to cooling air volume of YK1001. n713450 70rPr="17br 10 ilMilMil111=11=1111=11MIIMIO=11011=11=11106111.=MIMIIMI=11'.0=1=14111111111=IIMMI11. IGIP =11117.2171;;;;; =MOUND masura maniara 6-6-ranunralmano (mA)mENNIIIIIM1111111111111111=MMO1111111111MMIIIIIIMMEN1111=111111111111111

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10-1

111101...11111Mr4.1.1111MMNIIIIII=MMIIIIIIIMI11111011111111=MIEB11111 10-2MIIIIIIIIIM111111111111111111111111111111111111111111111111111

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10-4 10' io-5 10-4 10-3 10-2 10-'p (Pa) 1 Fig. 8 Ratio of pump current to gas pressure in the klystron.

32 December 1985 U.H.F. power klystrons YK1002

75 WX7j3 51

Ti PC)

65 301. stabilized glycol added

60 60 80 100 qmin (1/min) 120

Fig 9 Cooling curves for closed circuit cooling.

7284319 125

Ap (kPa)

100 30%g.....,/.7/7ycol

(100 kPa :1barl

25 I I I I I 40 50 60 qmin (1/min) 70 Fig. 10 Ratio of cooling water pressure to cooling water volume.

December 1985 33 YK1001 YK1002

100 7159930

Idrift (mA)

50 channel 21

channel 60

-2 -3 -4 -5 %/con (kV) -6

Hg. 11.

OX 73345'

1 1 1 1 1 1 1 1' Wdr is the peak sync. drive power consumption by using a circulator between driver and 1 cavity, measured at the input circulator.

20 40 G

Wdr G (W) 111.,

10 20

vision transm tter

Wdr transDOser 0 0 400 500 600 700/(MHz) 800

Fig. 12.

34 December 1985 YK1110

PULSED POWER KLYSTRON

Fixed frequency pulsed power klystron in metal -ceramic construction for the range 2998 ± 5 MHz, with 3 internal cavities, electromagnetic focusing, continuously operating getter -ion pump, coaxial input connector and S -band output waveguide, water cooled, intended as amplifier in linear accelerators and similar applications.

QUICK REFERENCE DATA

Frequency range f 2998 ± 5 MHz The klystron is factory tuned to 2998 MHz but can delivered for any frequency within the range 2993 MHz to 3003 MHz. Other frequencies on request. Peak power output Wop 6 MW Power gain G 30 dB

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by a.c. or d.c. Cathode oxide coated Heater voltage Vf 3 to 4.6 V Heater current, marked on each tube If 70 to 82 A The heater current should never exceed a peak value of 150 A when applying an a.c. heater voltage or 100 A when applying a d.c. heater voltage. Cold heater resistance Rfo 6 mS2 Waiting time twmin. 45 min

GETTER -ION PUMP POWER SUPPLY Pump voltage, unloaded 4 kV Internal resistance approx 300 k1

COOLING (valid for a pulse repetition rate ..p to 50 p.p.s.) Drift tubes and focusing coils q min. 4 1/min p max. 350 Pa Collector q min. 7 1/min p max. 350 Pa

ACCESSORIES Magnet and housing for getter -ion pump type TE1053A and TE 1053B

MASS (net) approx. 110 kg 350 Pa = 3,5 mbar.

rApril 1985 35 YK1110

MECHANICAL DATA Dimensions in mm

"Z"

48min

132i45

92 11 2"135PODvse

getter -ion -- pump

41 8

X-ray shield electromognetic focusing

view "Z' input coupling

01466tcu

ro ni In 41 m m m

f(k) f Vas 122,310 V. 128,7=4

Fig. 1.

MOUNTING Vertical. To be supported from mounting flange with cathode down. Although the collector and output cavity are provided with a lead shield, adequate additional shielding is required for protection against personal injury due to X-ray radiation.

36 March 1980 Pulsed power klystron YK1110

LIMITING VALUES (Absolute maximum rating system) for pulsed operation. notes All voltages are specified with respect to ground. Cathode voltage, peak max. -220 kV Cathode current, peak max. 120 A Beam input power, peak max. 25 MW R.F. input power, peak max. 10 kW R.F. output power, peak max. 8 MW Pulse repetition rate max. 600 p.p.s. Pulse duration max. 3 Voltage standing -wave ratio of load max. 1.5 Focusing magnet voltage max. 50 V max. 32 A Focusing magnet current min. 24 A Pump voltage max. 4.5 kV Pump current max. 15 mA Water outlet temperature max. 75 °C

OPERATING CONDITIONS 1 Frequency 2998 MHz Heater current 2 Cathode voltage, peak -210 kV 3 Cathode current, peak 100 A mean 10 mA Focusing magnet voltage 40 V Focusing magnet current 29 A 4 Pulse repetition rate 50 p.p.s. 5 Pulse duration 2.2 As R.F. input power 5 kW R.F. output power, peak 6 MW mean 0.66 kW

Notes 1. When the klystron has not been in operation for some time, conditioning might be required. This should be done by gradually increasing the cathode voltage until in each step stable operation is obtained. Stored tubes require pumping at intervals of approx. 3 months. 2. To be adjusted at the value marked on each tube. 3.For maintaining a minimum output pcwer of 5 MW during life the cathode voltage may be increased to -215 kV. 4. To be adjusted for max. r.f. output power. 5. Data for operation at p.r.r. higher thar 50 p.p.s. on request.

iNovember 1985 37 096143JBW 8E

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VI, 713/50

700.1Prilm"b7;11111111.11111111E111111116111111111111.1111111 10 =1.1. IGIP (mA)

11.1.1.01111.M=.10.111111.111 ioimimmosese =MENHIR OMMEIIIIIIMEMMEMIIMIIMIIIIIIMEMIIIIII=1111.111111111 1.1111111111.111111111W1111111.111111111111111111111111111111111 10-1 Emommp=limim . .1m,10 ilimn MMIIMMIE11111MIMICII1111111.11111111=1=11111=11111111.11111111 10-21.1111111111011111111111111111111.11111111111111111111111111111 ==. A611=11=1=11211MITI1.1041MO.2111:.==="2::::. ellMIMI i=IMI=MENNI. MrAMMIHIIIMIIIMIIIIIIMIMIIIIIMMEMIIIII=MENIIII= 10-3PidE111111111M11111111=1111111MM1111111111111111111111111111 .assamalanzumram;;;;Mmunimainramm..-zon;;;

10-4.101111111.1.1111111..1111111.111111111111111111111.01111111 10-6 0-5 10' io-3 10-2 0-1p (Pa) Fig. 4 Ratio of pump current to gas pressure in the klystron.

PRODUCT SAFETY R. F. radiation R. F. power may be emitted not only through the normal output coupling but also through other apertures (for example, r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

yDecember 1985 39 - MAINTENANCE TYPE YK1151

U.H.F. POWER KLYSTRON

U.H.F. TV power klystron in metal -ceramic construction, with four external resonant cavities, integral permanent magnets, and incorporated getter -ion pump. The klystron is intended to be used with depressed collector voltage in 10 kW and 20 kW vision transmitters, in sound transmitters or in high - power transposers in the frequency range 470 to 860 MHz.

QUICK REFERENCE DATA

Frequency range 470 to 860 MHz Output power, peak sync 25 kW Cooling forced air

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by d.c. notes Cathode dispenser type Heater voltage

vision transmitter Vf 7 V 1

sound transmitter Vf 6.5 V 1 Heater current If 30 (26 to 34) A Cold heater resistance Rfo= 28 ma Waiting time a. Heater voltage7 V tw min. 180 s 2 b. Stand-by 6 V vision transmitter tw 0 s 2,3 c. Stand-by 5.5 to 6 V sound transmitter 0 s 2,3 t1N

FOCUSING The integral temperature -compensated coaxial permanent magnets are pre -adjusted by the tube manufacturer.

GETTER -ION PUMP SUPPLY Pump voltage, no load condition 4 kV Internal resistance 300 ka If it is between 3 kV and 4.5 kV, the collector to body voltage may be used as the pump supply voltage. In this case the pump anode must be connected to body (earth) via a 3001(2 series resistor.

Notes 1. During operation the heater voltage should not fluctuate more than ± 3%. 2.The heater current should never exceed a peak value of 65 A. 3.Valid after a waiting time of at least 8 min; as soon as the beam voltage is switched on, the heater voltage must be increased to the nominal value.

iDecember 1985 41 YK1151

MECHANICAL DATA Dimensions in mm

.p.3

.1"

6,3.07

iS10.1.0n DIn E I one la 0- 1rnm ddddd al the plane

VII*1°1 7 : i : '!

'26.1 Tek

Gm.0 IlAt 11,

21Z -04

42 December 1985 U.H.F. power klystron YK1151

MASS AND DIMENSIONS Klystron net approx.100 kg gross approx.200 kg outline dimensions of packing (cm) 205 x 79 x 66

MOUNTING Mounting position: vertical with collector down. To remove the tube from the magnet frame a total free height of 2.5 m, excluding hoist, is required.

COOLING Cooling data, using the trolley 7E1081 Cathode socket, drift tubes, and cavities forced air, approx. 5 m3 /min, Op = 800 Pa (8 mbar) Collector (60 kW dissipation) forced air, min 55 m3/min. Op = 2100 Pa (21 mbar), see Figs 3, 4 and 5.

2. R.F. radiation R.F. power may be emitted through apertures other than the normal output coupling (for example r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

Instruction manual For detailed mounting and tuning instructions see klystron instruction manual, delivered with each tube.

IDecember 1985 43 YK1151

MECHANICAL DATA of the trolley TE1081 Dimension in mm

422 - connections for F fr collector and ; getter -ion pump A arth connection

..---1711 ft-- 232 111 431i SM 347

44 December 1985 U.H.F. power klystron YK1151

sect ion A -B

Fig.2b.

December 1985 45 YK1151

ACCESSORIES

Frequency range (MHz) 470 to 637 638 to 860 Channel 21 to41 42 to 68

Stub TE1089 TE1089

Cavity 1 TE1077A TE1078A Input coupling device TE1083 TE1084

Cavity 2 TE1077A TE1078A Load coupling device TE1085 TE1086

Cavity 3 TE1077D TE1078D Load coupling device TE1085 TE1086 Adaptor flange TE1090 TE1090

Cavity 4 TE1077D TE1078D Output coupling device TE1091A TE1092A

Magnet TE1112A TE1112A for drift tube 5 TE1112B TE1112B

Trolley TE1081 7E1081

Air duct for cavities TE1115 TE1115 Air duct for drift tube 3 TE1117 TE1117 Air duct for drift tube 4 TE1118 TE1118 Air duct for drift tube 5 TE1119 TE1119

Magnet for getter -ion pump TE1053A TE1053A

Connectors Heater 40649 40649 Heater/cathode 40649 40649 Focusing electrode 40634 40634 Accelerating electrode 40634 40634 Collector 40649 40649 Getter -ion pump 40634 40634 Earth 40649 40649

Special parts Load coupling unit mating TE1077D (instead of TE1091A) TE1087 Load coupling unit mating TE1078D (instead of TE1092A) TE1088 Plug connection mating TE1091A and TE1092A TE1091B Lifting device TE1113

Recommended circulators (optional) 470 to600 MHz 272216201551 (T100/1V-(4) 600 to800 MHz 272216201561 (T100/V-N) 790 to1000 MHz 272216203261 (T100/V-3-N1)

46 December 1985 U.H.F. power klystron YK1151

LIMITING VALUES (Absolute maximum ratingsystem) min. max. notes Heater voltage 8.5 V Ground to cathode voltage 28kV Ground to the accelerator electrode voltage 0kV 28kV Ground to collector voltage 0 kV 5 kV Cathode to focusing electrode voltage 100V 600 V Cathode current 4 A Accelerator electrode current -0.2 mA +1.5mA Focusing electrode current -0.2 mA +3mA Drift tube current static 60mA 4, 5 dynamic 260mA 5 Collector dissipation 65 kW Series resistor in accelerator electrode circuit 10kit Return loss of load at operating frequency 14dB Pump voltage, no load condition 3.0kV 5.0kV Pump current 15 mA Temperature of focusing magnets 70oc Inlet temperature of cooling air 45oc Outlet temperature of cooling air 110 OC

Notes 4. Static operation (operation without output power) in vision transmitters only with beam currents < 2/3 of given value allowed (see design considerations). 5. A drift tube current cut-out should be provided to protect the klystron. The cut-out should have an automatic action which depends on the drive level, see Figs 6 and 7.

December 1985 47 YK1151

TYPICAL OPERATING CONDITIONS notes As 20 kW vision transmitter in accordance with CCI R -G standard, 6 with depressed collector voltage

Operating conditions 7 Frequency range 470 to 640 470 to 79C 790 to 860MHz Channel 21 to 41 21 to60 61 to68 Collector to cathode voltage 16.5 18 20.0 20.0 kV 8 Cathode current 3.6 3.3 3.0 3.1 A Ground to collector voltage 4.0 4.0 4.0 4.5 kV Drift tube current (black level) 120 100 70 70 mA Ground to accelerator electrode voltage 0 3 6 ,-- 6 kV D.C. input power 59 59 60 62 kW Cathode to focusing electrode voltage 300 (100 to 600) V 9 Drive power see Fig. 10.

Performance Output power, peak sync 22 kW 10 min. max.

Sync. compression 40/25 11 V.S.B. suppression 23 25 dB 12 Noise ratio, with reference to black level 48 > 50 dB 13 Linearity 10/75 0.75 0.8 14 Differential gain (10/85 at 4.43 MHz) 0.75 0.85 15 Differential phase (10/85 at 4.43 MHz) +10/-3 +15/-5 deg 15, 16 Variation in response characteristic as a function of power level in the double-sideband region 0.25 0.5 dB 17 in the single-sideband region 0.4 0.6 dB 18 Ripple of response characteristic (white level 10/20) 0.3 dB Maximum output power 25 kW 19 Efficiency 37

48 December 1985 U.H.F. power klystron YK1151

TYPICAL OPERATING CONDITIONS (continued) notes As 20 kW vision transmitter in accordance with CCIR-G standard, 6 without depressed collector voltage Operating conditions 7 Frequency range 470 to 860 MHz Channel 21 to68 Collector to cathode voltage 19.5 to23 kV 8 Cathode current 3.05 to 2.6 A Ground to collector voltage 0 kV Drift tube current (black level) 80 to40 mA Ground to accelerator electrode voltage 1.5 to 6.5 kV D.C. input power 60 kW Cathode to focusing electrode voltage 300(100 to 600) V 9 Drive power see Fig. 10.

Performance Output power, peak sync 22 kW 10 min. typ. max. Sync. compression 52/26 11 V.S.B. suppression 23 25 dB 12 Noise ratio, with reference to black level 48 > 50 dB 13 Linearity 10/75 0.65 0.75 14 Differential gain (10/85 at 4.43 MHz) 0.65 0.75 15 Differential phase (10/85 at 4.43 MHz) +12/-3 +15/-5 deg 15, 16 Variation in response characteristic as a function of power level in the double-sideband region 0.25 0.5 dB 17 in the single-sideband region 0.4 0.6dB 18 Ripple of response characteristic (white level 10/20) 0.3dB Maximum output power 22 23 kW 19 Efficiency 37

iDecember 1985 49 YK1151

TYPICAL OPERATING CONDITIONS (continued) notes As 10 kW vision transmitter in accordance with CCIR-G standarc 6

Operating conditions 7 Frequency range 470 to 640 470 to 790 790 to860 MHz Channel 21 to 41 21 to60 61 to 68 Collector to cathode voltage 15.0 16.0 16.0 kV 8 Cathode current 2.2 2.1 2.2 A Ground to collector voltage 4.0 4.0 4.5 kV Drift tube current (black level) 60 50 50 mA Ground accelerator electrode voltage 4.0 5.5 6.0 kV D.C. input power 33 33.5 35 kW Cathode to focusing electrode voltage 300 (100 to 600) V 9 Drive power see Fig. 10.

Performance 10 Output power, peak sync 11 kW min. typ. max.

Sync. compression 40/25 11 V.S.B. suppression 23 25 dB 12 Noise ratio, with reference to black level 48 > 50 dB 13 Linearity 10/75 0.75 0.8 14 Differential gain (10/85 at 4.43 MHz) 0.75 0.85 15 Differential phase (10/85 at 4.43 MHz) +10/-3 +15/-5 deg 15,16 Variation in response characteristic as a function of power level in the double-sideband region 0.25 0.5 dB 17 in the single-sideband region 0.4 0.6 dB 18 Ripple of response characteristic (white level 10/20) 0.3 dB Maximum output power 12.5 kW 19 Efficiency 33

50 December 1985 U.H.F. power klystron YK1151

TYPICAL OPERATING CONDITIONS (continued) notes As sound transmitter in accordance with the CCI R -G standard (one carrier operation) 6 R.F. setting Cavity 4 on sound carrier frequency Cavity 1 on sound carrier frequency -0.5 MHz Cavity 2 on sound carrier frequency -0.5 MHz, Cavity 3 on sound carrier frequency min. +3 MHz, (load coupler and load are not necessary) Double -humped resonance curve slack < -0.5 dB

Operation with high voltage collector to cathode with depressed collector voltage 7 Frequency range 470 to 640 470 to 790 790 to860 MHz Channel 21 to41 21 to60 61 to 68 Collector to cathode voltage 16.5 18 20.0 20.0 kV Ground to collector voltage 4.0 4.0 4.0 4.5 kV Cathode to focusing electrode voltage 100 to 600 100 to 600 100 to600 V Driving power < 0.5 0.5 0.5 Ground to accelerator electrode voltage 10.5 12.5 14.0 16.0 14.5 16.5 kV Cathode current 1.1 0.8 1.0 0.7 1.0 0.7 A 20 Output power 4.4 2.2 4.4 2.2 4.4 2.2 kW without depressed collector voltage Frequency range 470 to 860 MHz Channels 21 to68 Collector to cathode voltage 19.5 to23 kV Ground to collector voltage 0 kV Cathode to focusing electrode voltage 100 to 600 V Driving power < 1 Ground to accelerator electrode voltage 11.5 to 15.5 13 to 17 kV Cathode current 0.8 to 0.7 0.6 to0.5 A 20 Output power 2.2 1.1 kW

i'December1985 51 YK1151

TYPICAL OPERATING CONDITIONS (continued) notes As sound transmitter (continued) 6

Operation with low voltage collector to cathode 7 with depressed collector voltage Frequency range 470 to 640 470 to 790 790 to860 MHz Channel 21 to 41 21 to60 61 to 68 Collector to cathode voltage 15.0 16.0 16.0 kV Ground to collector voltage 4.0 4.0 4.5 kV Cathode to focusing electrode voltage 100 to 600 100 to 600 100 to600 V Driving power < 0.5 < 0.5 < 0.5 W Ground to accelerator electrode voltage 0.9:=-10.5 13.0 .--14.0 kV Cathode current 0.8 0.6 0.65 0.5 0.65 0.5 A 20 Output power 2.2 1.1 2.2 1.1 2.2 1.1 kW

Notes 6. With stated accessories; in case of failure the beam voltage must be switched -off and made to drop below 5% of its nominal value within 500 ms of the failure. 7. For optimum performance one of these settings has to be chosen in accordance with the transmitter manual. 8. Fluctuations up to ± 3% will not damage the tube; to obtain a good signal transfer quality the beam voltage should not vary more than ± 1%. 9. To be adjusted for the specified cathode current. 10. The signal transfer quality is measured with matched load (VSWR < 1.05). 11. Calculated from (1v -black./v - sync,1 in,/11-Vblack/Vsync)out 12. Measured with 10 to 75% modulation without compensation; V.S.B. filter between driving stage and klystron. 13. Produced by the klystron itself; without hum from power supplies. 14. Measured with a staircase signal of 10 to 75% of the peak sync valt.e. 15. Measured with a sawtooth voltage with an amplitude between 15 and 80% of the peak sync. value on which is superimposed a 4.43 MHz sinewave with a 10% peak to peak value. 16. Phase difference to burst signal. 17. With respect to ± 0.5 MHz about the carrier frequency. 80%11174 18.With respecttospecified tolerancerange. 19. With increased driving power under the given 00 / operating conditions, without guarantee for signal transfer quality. +,,5 MHz + 5MHz 20. Cathode current adjusted by accelerating electrode voltage (coarse), and focusing 0,6 dB electrode voltage (fine). Kyr/a',/,',-//,./////,/z,r1

52 December 1985 U.H.F. power klystron YK1151

VX 733102E 80 60 a min* eo (kg/min) Aemax (()

70 50

min

60 40

50 30

40 20

30 10

0 10 20 30 40 50 60 70 wcoil (4W)

Fig. 3 Required quantity of cooling air Qmin for the inlet temperature Ti = 25 °C and relative temperature difference AO versus the collector dissipation Wcoll.

A normal cubic metre (at 1033 mbar, 15 DC) corresponds to 1.226 kg.

December 1985 53 YK1151

VX 733103E vv Q..--1111111 .),s, ;h.--- ,InEgniffeannyAr Outo i -= (kg/mm)ir. nilniumfillATAWArff - ' ' III1111111111AWArbi,

EnEnnling - inInFillHAVANWII/if MEINEn ---111111111,117MW049,ZIEW 11M11111111111

1.6iCi-WilifilfleOffer0-2/4e;: I ' i I11EU air/4ArilA A NI 1 . -5191111/NEEradeffe/Ar 'Um=f (Clair;r1Nisk,. 40WNW hilifiMP.Ar.A4v Nal -----111101/41 IV, /tang Am 3nWhINS27; /ff,'

, 4_, .-- rillihr17/11410.%/;,-/!/./;'/ 0ir3f (WC°I1 i A°7 Elha ...,tultmw/// / rvr - MI MOM Emu -- -MIME IMENIMMISW qo m 10-EIIIIIIIMIEn_4 IIIIIIIININI t- m3/min) ...L. _10iii.,201 kw! (km 1 . L 1 .I- I

t . . :-.70_4_60LAO 30..20-10.- Fig. 4. L. . MO , I

. 10 Quadrant 1. ,, quantity coolingtion awi r Q (1,1:sgt/bmeinc)alfcourlaatgei yencollcollector d IIIII 20 in such a way, that the operating point for the highest expectei inlet temperature does not lie - - FAA below the draw" limiting curve. iprrall..30 Quadrant 2. T Calculation of the cooling air volume qom (Ti) in (m3/min) at the altitude h = 0 m with respect to 40 / , 1111 the highest inle-. temperature Ti to be expected. r2V44 Quadrant 3. i AIN(I211111 - 50 Consideration cf thegeographic transmitter alb - MINI1110111-- rude (lower der sityl: Calculation of the required -1--4% air volume q (h, for the same quantity of cooling 0* "IIC260 air Clair 4, Xt 111 Example _ Given that Wca = 40 kW, h = 2000 m and Ti = q = f (ClOrnah) 11 70 45C.

- 1 - t,_4, From Quadrant 1: N.p. I-- .'.`Ad q c Qair >53 kg/min and Omax = 44.5 K. (m /min) 14? r From Quadrant 2: .19 inlet temperature Ti = 45 °C; by substitution 90 Oom(45) = 47.5 &/min. IIIII From Quadrant 3: . r at h = 2000 rr, q(2000, 45) = 57 m' /min.

54 December 1985 U.H.F. power klystron YK1151

.733.04E 30IMMO MMMWOMMMOIM ME MINIM M =MEM M IMMRAM,111M Op MMMMMOMMIIM IBM MO MEMO A A K (kPalMIIIMMMINIMINAM MUM= M MMMMM MOM II'I °°i Ai AM Trolle 1081 withklstrop MUMMMMINNIMMIRAM AM AM .41111M MMINOMORIMMIRAMPAMMAMMIMMII 2.5mom mmmmummaimmommmommsn =gam umr alumm mmommommmIIMMMMMIIMMWOMMUMMIMMIIMMIMMMOMEMWP mmmmmmmm mom mum mommmump mgdimpmmilmmigmm MMMMMMMM WOMINIMMMMIIMMIIMMUMOMINIMPAMMdOWIMAIMMIUMMIIMM MINIMMMMMMMMMIIMM MMMIIMIMMMg AM WPAIWAMMMOIMMINIMMM 20MMINEWOMMMM MMIOMINIMMMM =Tana MMO%11MMMOIMMMIIMMIIM lummommumummmmmniOi%imemmommummommWIMMMM NM= MOM MMMINIMMMIMMINIMINIMP2M rdagd dMMMMMMM MIMMMM MU= WIPAWASI MOIMMINIMM 1.5MIIMMMIIMINIMMOIMPal MOM/P.2M IIMM MUM MOMMMINOMMM MMMEMMMMMINIMMOMIMagdPWIIMMM MMIIMMMMWOMMMMMMUM =MEM= 111111MAgiAR: OW= ME MM MMM=MMMMMMMMMMMMII MEM MMOMMRiPaP2ONOIM MMIIIMMMM IIMMINIMMINIMMIMIMMMM MMOIMINIMMP2R2P2MAIIMMOMMMEM MMMEMMMMMMUMMM 10MMMEMMP2MakraPilMMI MUM= MIIMMMINOMMMMMMMIOMMIll MIIMMI,Walrall= NMI IMMMMOIMMMM =WM= MM MMR.7020MOMIMINIPMEMI 1MM MM. MIMIMMOMMSM ME MM. niai020221IMM MMMMM MMUMMIIMINIM MMMMEEMMMIT IBIOM MOM iCifieitiAMMMMMWMMMMMIIMMMMMMMMMMMMMMUMMEMMMIIMMOIM 05tliMINIMM=MMMMMMOIMMINIMMIIMMMINIMMUMMMMIMMMMMMMMM MMMIOMMUMINIMMMMIMMIMMWOMMINIMIIMMOMMINIMMMUMMOI MMIIMINIMMMMMMMMMMMINIMMINIMMEMMMIMMIUMMINIMMOMMOIM MEMINIMMEMMMUMMMMIMEMMINIMMMMMMMMMMMMMUMMMMMMMII MUMMEMEMMMMMMIIMMIIMMMMMMMMMMMMMMMMMUMMMINOMM 30 40 SO 60 orOmin) 10

Fig. 5 Calculation of the pressure drop Ap between air inlet and air outlet at the trolley TE 1081 as a function of cooling air volume q for selection of the correct blower.

I December 1985 55 YK1151

7 731033IE 300

'drift ImA1

*4,

I out 200

mon and sound fed from ped S y the same power supply

100 vision and sound fed -from the Same power supply stage 1to 5kW output power, peak sync visionI II I I

0 20 30 40 50 60 70 channel

Fig. 6 Drift tube current cut-out at operation with depressed collector voltage for 20 kW transmitter.

VII 733217E 300

Idroft ImAI

200

"age

100 visi37;_ouPut r vision and sound ted from Peak sync I., 40.~ the same power supply stage 1to 5kW output power, peak sync vision

0 20 30 40 50 60 70 channel

Fig. 7 Drift tube current cut-out at operation without depressed collector voltage for 20 kW transmitter.

56 December 1985 U.H.F. power klystron YK1151

wx 733105 1E 150

Idrif t (mA)

100 N. -13.4.4,

1.Do, vis on and sound led from

t'd the same power supple sync "*.

vils(14 I 1 II I I vision and sound fedro, 50 stage 1to 3.5 kW output power, peak sync the same power supply vision

0 20 30 40 50 60 70 channel

Fig. 8 Drift tube current cut-out at operation with depressed collector voltage for 10 kW transmitter.

VX 3249S I 4 V101 k 200V

Ik 300V (A) 400V

oo 5 10 15 20 25 Vi33 k (kV)

Fig. 9.

December 1985 57 YK1151

VI 7)3111 IE

Weir (WI

operation a b c d e f 15 V10,i,,, 20 18 16.5 16 15 195 23kV VgroundAoli 4 4 4 4 4 0 kV lb,am 3.0 3.3 3.6 21 22 305 26A 20kW 10 kW 20kW vision transmitter 10

-4"...... w.... ----\ c b,e '..--'"-----a,d

20 30 40 50 60 70 channel

Fig. 10 Max. drive power in dependence on channel and operation mode.

58 December 1985 DESIGN U.H.F. power klystron CONSIDERATIONS YK 1151

DESIGN CONSIDERATIONS FOR POWER SUPPLIES AND SAFETY CIRCUITS 1. Power supplies

Range 1) Internal Hum resistance

Heater voltage 6.5 to 8.0 V 2) Corresponding (26 to 36 A) to non -smoothed tiree-phase, full - wave rectifier

Cathode to focusing 100 to 600 V < 0.1% electrode voltage (-0.2 to +3 mA)

Ground to collector 0 or 4.5/ 4.0/ 3,5 kV 3) 0 or voltage (500 mA mean, 1 A peak) 300 to 600 2< 0.1%

Operation Operation Collector to4) without depressedwith depressed cathode voltage collector voltagecollector voltage 16.5 kV 20 kW operation 19.5 to 23 kV 18.0 kV (65 kW) (65 kW) 20.0 kV 300 to 600 S-2< 0.1% 10 kW operation 15.0 kV 16.0 kV (35 kW)

Ground to accelerator see Fig. 9. electrode voltage

Getter -ion pump to voltage, unloaded 3.5 to 4 kV cathode voltage 5) (load up to 15 mA) 300k2

1) Maximum allowable deviation from nominal or set values: a) ±2% during adjustment, if the published performance is to be attained, b) ±1% fluctuation of the set values during operation to maintain the performance, c) during operation, deviations not exceeding ±3% of the set values will not damage the tube.

2) The heater current should never exceed a peak value of 65 A.

3) At operationwith depressed collector voltage a capacitor of 0.5F must be installed near the collector connection of the klystron and the trolley between feed line and ground.

4) An additionaltap for approx. 500 V to the given voltages is recommended.

51 Needed for operation without depressed collector voltage.

2. Safety circuits The safety circuits must operate in any one of the following cases: a) The cut-out threshold of the drift tube current is exceeded. Dependent on the peak output power this cut-out should operate in two stages, see Figs 6 and 7.

IDecember 1985 59 DESIGN CONSIDERATIONS YK 1151

b) The set collector or cathode current is exceeded by more than 30 % (max. 400 mA). c) The air volume for collector cooling falls below the initial value for a longer period (see data sheet by cooling). dl The cooling air for drift tubes 3, 4 and 5, cavity 4, and cathode terminals fails (checked by a vane or equivalent device). el The set max. temperature on the contact thermometers of the klystron is exceeded.

Set temperatures of the probe assemblies are:

Probe 1 Probe 2 Probe 3 (top) (middle) (bottom)

10 kW Vision 80 °C 80 °C 80 °C 10 kW Sound 65 °C 65 °C 65 °C 20 kW Vision 90 °C 110 °C 110 °C 20 kW Sound 65 °C 65 °C 65 °C i f) The return loss is lower 14 dB (VSWR 1.51. g) The pump operating current exceeds 50µA.

3. Operation without output power Static operation (operation without output power) in vision transmitters is not allowed at beam currents > 2/3 of the given value. Without driving signal the beam current must be reduced or the tube switched -off.

4. Switching -on and switching -off procedures a) Switching -on sequence: 1. accelerating electrode at cathode potential, 2. cooling air, 3. ground to collector voltage, 4. heater voltage and cathode to focusing electrode voltage. Steps 1 to 4 can be simultaneous. 5. waiting time, 6. collector to cathode voltage, 7. ground to accelerator electrode voltage. IA Switching -off sequence: 1. accelerating electrode at cathode potential, 2. all other voltages and cooling simultaneously. c) Switching -off sequence when the safety circuits operate: 1. accelerating electrode at cathode potential, 2. cathode -to -collector voltage. For repeated switching -on (repeating): see a) 6 and 7. In case of failure the following voltages must be switched -off and made to drop below 5% of their nominal value: accelerating electrode -to -body voltage and cathode -to -collector voltage within 500 ms, collector -to - body voltage within 1s. It is recommended to start this drop 200 ms after occurrence of the failure.

60 December 1985 DESIGN U.H.F. power klystron CONSIDERATIONS YK 1151

5. Waiting time after short interruptions of operation

Interruption of the Required waiting {vision Vf =7 V heater voltage time sound Vf = 6.5 V

0 to 30 s 0 s 30 to 60 s 30s 60 to 90 s 60s > 90 s 180 s

6. Focusing a) The tube is pre -focused by the tube manufacturer. bl For final focusing see manual.

7. Cooling al The cooling of the cathode socket, accelerating electrode, drift tubes, and cavities must be monitored. b) The air volume of the collector cooling and, dependent on it, the temperature distribution at the air outlet, must be monitored at minimum three points. c) Also during stand-by the cathode socket must be cooled and the getter -ion pump kept in operation.

8. Mounting a) The r.f. connectors for operation have the following dimensions: Stub 7/16 Input coupling device cavity 1 7/16 Output coupling device cavities 2 and 3 7/16 Output coupling device cavity 4 3 1/8" b) Forces on klystron terminals max. 10 N. Bending moment max. 1 Nm. c) The coaxial magnets must not be removed from the klystron. d) In order to prevent distortion of the magnetic focusing field, ferromagnetic material should not be applied within a radius of 35 cm from the tube axis. Using the trolley TE1081. No parts should be mounted on or w thin the trolley and ferromagnetic parts in the trolley are not allowed. e) Magnetic stray fields, e.g. from transfo-rners, coils, etc., must not exceed 50 pT 10.5 gauss) at the surface of the klystrcn. f)It is recommended to use non-magnetic material for doors of cabinets containing output stages, if these doors must be closed after focusing.

9. Storage and transport a) In cases of prolonged storage, each klystron must be checked for vacuum at least every 6 months and pumped if necessary. It is recommended to check every 3 mon:hs (the heater voltage need not switched -on). bl All klystrons are insured during delivery transportation. Each tube must be inspected for damage within 7 days of delivery: 1. Visual inspection of pack and tube. 2. Vacuum inspection with the getter -ion pump (without heating), the pump current must decrease to less than 10 µA within 15 min.

December 1985 61

YK1190 MAINTENANCE TYPES YK1191 YK1192

U.H.F. POWER KLYSTRONS

For u.h.f. band IV/V vision transmitters and sound transmitters. Metal -ceramic construction, four extemal cavities, electromagnetic focusing and a high -stability dispenser type cathode. Suitable for vapour, vapour -condensation or water cooling.

QUICK REFERENCE DATA

Frequency range YK1190 470 to 610 MHz YK1191 590 to 720 MHz YK1192 710 to 860 MHz Output power as vision transmitter 40 kW Cooling vapour, vapour condensation, or water

This data must be read in conjunction with GENERAL OPERATICNAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by d.c. notes Cathode dispenser type Heater voltage Vf 8.5V ± 3%

Heater current If 22 to 27A 1 Cold heater resistance Rfo 30mil Waiting time 2 at Vf = 8.5 V tw min. 300 s at Vf = 6.0 V (black heat) twmin. 0 s

FOCUSING: electromagnetic Focusing coil current 9 to 12A Resistance of focusing coils cold (20 °C) 7.2 to 9.5f2 operating at an ambient temperature of 20 °C 11 D

BEAM CONTROL The accelerator electrode voltage allows adjustment of the beam current between 0 and 100%.

GETTER -ION PUMP SUPPLY 3 Pump voltage, no-load condition 3 to 4kV Internal resistance of supply 300kit

1November 1985 83 YK1190 YK1191 YK1192

MECHANICAL DATA YK1190 Dimensions in mm

Getter -ion poop

469,9 Heater

VIEW X

TE 1111

Inlet-r T Inlet - - 44.5

Section A -A\i` A

c:51' Outlet -4- A- 7Outlet - Section B -B

Inlet -A- Inlet - 38.1

Section C -C

cf.

Outlet-l- Outlet - 73 Section 0 -0 7.r

.c 130.2

Inlet

Section E -E

.i%

Fig. 1.

V1722007

64 November 1985 YK1190 U.H.F. power klystrons YK1191 YK1192

YK1191, YK1192

Getter -ion pump

469,9

Heater -0174±1

VIEW X 02824md jP1-4- TE 1132 0 265 76,2

Inlet Inlet- -8 - 57,2

Section A -A A A 1 127 / Outlet Outlet 42 f -f \// B Section B -B 127

A Inlet T 4 Inlet - 63,5

Section C -C f C 1271165

e". F Outlet Outlet -- - {- 78.1 ft Section D -D 127

130.2 1 Inlet Inlet-- 122,5 Outlet Fection E -E I f E E 0202-0,5

Fig. 2.

November 1985 65 YK1190 YK1191 YK1192

Mechanical outlines of trolley

Dimensions in mm

-.. 02826- 6 tapped holes M6 on 266 mm p c. dia.

;" Water outlet 11/4 -16 UN

Water inlet 5/8- 24 UNEF

31/8% EIA

733 11 042 7.11/.6- 5595/70 31 40- 385

165 itr 1173

590 - 41. 40 585

720

152 400 Fig. 3. 720 YX 71Z 6.2.A

YK 1190 = 570 mm. YK 1191/92 = 595 mm.

66 April19851 YK119O U.H.F. power klystrons YK1191 YK1192

COOLING Cathode socket accelerator electrode air; q = 0.15 m3/min, Ti max. 40 0C Collector vapour (with 13(x ler TEI110), note 4 volume of water converted to steam: 27 cm'/min per kW collector dissipation resulting in 43 k/min steam per kW collector dissipation water or vapour condensation (with cooler TE1194) q = 35 to 60 k/min, T0 max 80 °C, Drift tubes water; rate of flow to drift tubes and collector connected in series q = 9 Ti maK. 80 °C, Jp = 200 kPa 12 bar) Cavities 3 and 4 forced air; q =1 5 m3 /min, = 250 Pa (2.5 mbar) Ti max. 45 °C

MASS AND DIMENSIONS Klystron net approx. 80 kg gross approx.230 kg outline dimensions of packing (cm) 205 x 75 x 65 Cavities approx. 45 kg Magnet frame with coils approx. 885 kg

MOUNTING Mounting position: vertical with collector up. To remove the tube from the magnet frame a total free height of 3 5 m, excluding hoist, is required.

PRODUCT SAFETY 1. X-radiation Correct operation of the tube can be guaran:eed only if a set of accessories, approved by the tube manufacturer, is used. The operating tube generates X-rays which can penetrate the ceramic parts of the tube envelope. In order to reduce the radiation at any accessible points to an officially acceptable, non -dangerous level the tube must be shielded and any possibly radiation path blocked by at least 1 mm of brass or an equivalent depth of non-magnetic X-ray absorbing material. The proper use of accessories will provide the necessary shielding.

2. R.F. radiation R.F. power may be emitted through apertures other than the normal output coup ing (fo- example r.f. leaks). This r.f. power may be sufficiently intense to cause dancer to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

Instruction manual For detailed mounting and tuning instructiols see klystron instruction manual, delivered with each tube.

November 1985 67 YK1190 YK1191 YK1192

ACCESSORIES (note 5) Each tube is delivered with the following factory fitted accessories:

YK1190 YK1191 YK1192 Collector radiation suppressor TE1111 TE1132 7E1195 Accelerator electrode ring TE1141 TE1141 TE1141 Cathode ring TE1142 TE1142 TE1142 or TE1142B or TE1142B or TE1142B Set of sealing rings TE1147 TE1147 TE1147 A. Accessories to be ordered separately when replacing equivalent other brand types Magnet flux ring TE1138 TE1138 Spark gap TE1140 TE1140 Set of connectors (heater, cathode, acc. electrode, getter -ion pump) TE1146 TE1146 TE1146

B. Accessories required for first equipment Magnet flux ring TE1138 TE1138 TE1138 Spark gap TE1140 TE1140 TE1140 Set of connectors (heater, cathode, acc. electrode, getter -ion pump) TE1146 TE1146 TE1146 Extension pipes 6 x TE1133A 6 x TE1133A 6xTE1133A for drift tubes 2 x TE1133B 2 x TE113313 2 x TE1133B Water interconnecting pipes between drift tubes Ti - T2 TE1134A TE1135A TE1135A T2 - T3 TE1134B TE1135B TE1135B T3 - 74 TE1134C TE1135C TE1135C 14 - T5 TE1134D TE1135D TE1135D Flexible water pipes between tube and boiler for vapour cooling TE1145A TE1145A TE1145A between frame and tube TE1145B TE1145B TE1145B tube outlet for water cooling TE1145C TE1145C TE1145C Boiler for vapour cooling TE1110 TE1110 TE1110 Or Cooler for water cooling TE1194 TE1194 TE1194 Cavities 3 xTE1121A 3 x TE1098A 3 x TE1191A 1 x TE1121D 1 x TE1098D 1 x TE1191B Input coupler TE1122A TE1102 TE1102 Load coupler for cavities 2 and 3 2 xTE1122B 2 x TE1102 2 x TE1102 Blanking plates 3 x7E1157 3 xTE1157 3 x 7E1157 Output coupler for cavity 4 TE1123 TE1105 TEl Arc detector 7E1107 TE1107 TE1107 Magnet frame with coils TE1108 TE1108 TE1108 Tool set TE1137 TE1137 TE1137

68 November 1985 YK1190 U. H. F. power klystrons YK1191 YK1192

ACCESSORIES (continued) YK1290 YK1291 YK1292

C. Spare and optional parts Collector radiation suppressor TE1111 TE1132 TE1195 Accelerator electrode ring TE1141 TE1141 TE1141 Cathode ring TE1142 TE1142 TE1142 or TE1142B or TE1142B or TE1142B Set of connectors (heater, cathode, acc. electrode, getter -ion pump) TE1146 TE1146 TE1146 Set of sealing rings TE1147 TE1147 TE1147 Water protection shield TE1139 TE1139 TE1139 Recommended circulators 470 to 600 MHz 2722 162 01551 (T100/IV-N) 600 to 800 MHz 2722 162 01561 (T100/V-N1 790 to 1000 MHz 2722 162 03231 (T100/V-3-N)

LIMITING VALUES (Absolute maximum rating system) Heater voltage max. 9.5 V Beam voltage max. 23 kV Cold cathode voltage max. -27 kV

Beam current max. 7 A Body current max. 15D mA Accelerator electrode current max. 6 mA note 7 Collector dissipation max. 150 kW Load VSWR max. 1.5 Temperature of tube envelope max. 175 °C (6 bar) Static pressure in the cooling system max. 600 kPa note 6

1 November 1985 69 YK1190 YK1191 YK1192

TYPICAL OPERATING CONDITIONS: YK1190/YK1191 As 40 kW vision transmitter (CCIR-G standard) gain -tuned eficiency-tuned operation operation (examples) Output power, peak sync. 45 45 45 kW Beam voltage 22 20.5 22 kV Beam current 6.3 5.7 4.8 A Accelerator to cathode voltage 22 20.5 18 kV Body current without drive 15 15 15 mA at 45 kW peak sync., black level 30 40 40 mA Focusing coil current 10.5 10.5 10.0 A Drive power, peak sync. YK1190 - channel 21 2 10 6 W note 9 channel 38 1.5 7 4 W note 9 YK1191 - channel 37 1.5 7 4 W note 9 channel 51 1 5 3 W note 9 Bandwidth at -1 dB points 8 8 8 MHz note 10 Differential gain 80 75 70 note 11 Differential phase 6 7 10 deg note 11 Linearity 70 65 60 note 12 Operating efficiency 32 38.5 42.5 Saturation output power 55 60 46.5 kW Saturation efficiency 40 43 44

As 4 kW/8 kW sound transmitter (CCIR-G standard)

Output power 4.5 9 4.5 9 kW Beam voltage 20.5 20.5 22 22 kV note 6 Beam current 1.25 1 5 1.15 1.4 A Accelerator cathode voltage 7.5= 8.5 x 7 8 kV note 13 Focusing coil current 9 A Drive power 1.5 W note 9

Bandwidth at -1 dB points 1 MHz

70 November 1985 YK1190 U.H.F. power klystrons YK1191 YK1192

TYPICAL OPERATING CONDITIONS: YK1192 As 40 kW vision transmitter (CCIRG standard)

Output power, peak sync 45 ,

Drive power, peak sync. 2 W note 9 Bandwidth at -1 dB points 8 MHz note 10

Differential gain 70 % note 11 Differential phase 10 deg note 11 Linearity 60 % note 12 Operating efficiency 42.5 Saturation output power 46.5 kW Saturation efficiency 44

As 4 kW/8 kW sound transmitter (CCIR-G standard) Output power 4.5 9 kW Beam voltage 23 23 kV note 6 Beam current 1.1 1.3 A Accelerator to cathode voltage 7 -8 kV note 13

Focusing coil current 9 A Drive power 1.5 W note 9

Bandwidth at -1 dB points 1 MHz

November 1985 71 YK1190 YK1191 YK1192

Notes 1.When switching on the heater voltage, the heater current must never exceed a peak value of 65 A. 2. In case of a mains failure an interruption up to 30 s can be tolerated without new waiting time. After min. 10 minutes of stand-by heating time at 6 V (black heat!, the beam current may be switched on; the heater voltage must be increased to its nominal value of 8.5 V simultaneously. Continuous black heat periods should not exceed two weeks and should be separated by similar periods of rest or full operation. 3.To ensure that the klystron is always ready for operation, operate the ion getter pump at least every 6 months (preferably every 3 months) during storage. For details see klystron instruction manual. 4. In order to avoid corrosion of the cooling system, coolant water must be pure and deionized (resistivity min. 1001(12.cm). 5.Correct operation of the tube can be guaranteed only if a set of accessories, approved by the tube manufacturer, is used. The operating tube generates X-rays whch can penetrate the ceramic parts of the tube envelope. In order to reduce the radiation at any accessible points to an officially admissible, non -dangerous level the tube must be shielded and any possible radiation path must be blocked by at least 1 mm of brass or an equivalent portion of non-magnetic X-ray absorbing material. The proper use of our accessory parts will provide the necessary shielding. 6.Static pressure in the body -cooling system and in the water-cooling jacket TE1194. 7.The accelerator electrode voltage must not be positive with respect to the body (ground). 8. If the accelerator electrode is connected to the body (ground) via 10 kS2 resistor, the beam current is within ± 5% of the value given in the graph of Fig. 4. 9.The drive power is defined as the power delivered to a matched load. 10.Variation of the signal level between black and white at any sideband frequency may cause a reaction of the peak sync. level. Proper tube design limits this reaction to less than 0.5 dB. 11.Measured with a sawtooth signal from black level to peak white occuring at each line and superimposed colour subcarrier with a 10 % peak to peak amplitude. 12. Measured with a ten -step staircase signal from black level to peak with occuring at each line. 13.A voltage divider for adjusting the beam current should be dimensioned on the basis of an accelerator electrode current of max. 1.5 mA.

72 November 1985 YK1190 U.H.F. power klystrons YK1191 YK1192

7Z67437.1 1111111MMEMMIMIIIIMIIMEMINEM

8MMMMEMMMMMMIMIMMIIIMIMEMIIIOIIEIIIM 111111111111111111111MEMMIIIIMIIIIIMMEM upper limit

.111111.11111MINMEMMUC MEINEM111111111111111MMEWlower limit 6MIIMINIMMEMMEM/1411111MM 111111MMI1111111111.1111MWMIIMME

MINIIIIIIIIMMIIIMM111111111111111111M 4 111111111111MMINIMUMIIMMIIIMI

MIMINNIMINE1111111111111111MMIMMEIN MEMMIIIIIIIIIIIUM111111111MIMEM111111111 2MEMMEMENIKENIIIIMMINIIMMIMINEM

MINIMAMMEMOIMMINIIMIIIMINM MENINIMIIMMENNIMIIMMINNIN

10 20 30 accelerator to cathode voltage I kV)

Fig. 4.

Apri 1985 73 r MAINTENANCE TYPE YK1198

U.H.F. POWER KLYSTRON

Optionally vapour, vapour condensation, or water-cooled power klystron in metal eramic construction for 60 kW CW amplifiers. The tube has four external cavities, electromagnetic focusing and a high stability dispenser -type cathode.

QUICK REFERENCE DATA

Frequency range 800 MHz Cooling vapour, vapour condensation, or water

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by d.c. notes Cathode dispenser type Heater voltage Vf 8.5 V ±3 %

Heater current If .== 22 to 27 A 1 Cold heater resistance Rfo 30 mil Waiting time 2 at Vf = 8.5 V twmin. 300 s at Vf = 6.0 V (black heat) twmin. 0 s

FOCUSING: electromagnetic Focusing coil current 9 to 12 A Resistance of focusing coils

cold (20 °C) 7.2 to 9.5 12

operating at an ambient temperature of 20 °C 11 E2

BEAM CONTROL The accelerator electrode voltage allows adjustment of the beam current between 0 and 100%.

GETTER -ION PUMP SUPPLY 3 Pump voltage, no-load condition 3 to 4kV Internal resistance of supply 300 ki-t

November 1985 75 YK1198

MECHANICAL DATA Dimensions in mm

Getter -ion pump

669.9 Heater

VIEW X

TE 1132 76.2 Inlet-r- I 57.2 Section A -A

127

Outlet -1 Outlet - 22,2

Section B -B B 127

Inlet -4- + Inlet - 63,5

Section C -C fi C

-t -

Outlet 4 1- Outlet - 78,1

Section D -D

130.2 Inlet Inlet - Outlet _ Section E -E F E

Fig. 1.

76 November 1985 U.H.F. power klystron YK1198

Mechanical outlines of trolley

Dimensions in mm

e. 02816 6 tapped holes M6 on 266mm p c dia

Water outlet 11/4-16 UN 554 Water inlet 5/8- 24 UNEF

3 1/8"- EIA

733 5951s 042 .-

1400 385

165 1173

_ AL

590 40 -585-

Fig. 2. VII 'IISae

"I 1Aprii 1985 77 YK1198

COOLING Cathode socket accelerator electrode air; q = 0.15 m3/min, Ti max. 40 °C Collector vapour (with boiler TE11101, note 4 volume of water converted to steam: 27 cm1!min per kW collector dissipation resulting in 43 limin steam per kW collector dissipation water or vapour condensation (with cooler TE1194) q = 35 to 60 ,:/min, To max 80 °C, Drift tubes water; rate of flow to crift tubes and collector connected in series q = 9 (//min, Ti max. 80 °C, .1p = 200 kPa (2 bar) Cavities 3 and 4 forced air; q = 1.5 m3/min, = 250 Pa (2.5 mbar) Ti max. 45 °C

MASS AND DIMENSIONS K lystron

net approx. 80 kg gross approx. 230 kg outline dimensions of packing (cm) 205 x 75 x 65 Cavities approx. 45 kg Magnet frame with coils approx. 885 kg

MOUNTING Mounting position: vertical with collector up. To remove the tube from the magnet frame a total free height of 3.5 m, excluding hoist, is required.

2. R.F. radiation R.F. power may be emitted through apertures other than the normal output coupling (for example r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

Instruction manual For detailed mounting and tuning instructions see klystron instruction manual, delivered with each tube.

78 November 1985 U.H.F. power klystron YK1198

ACCESSORIES Set of sealing rings TE1147 Collector radiation suppressor TE1195 Accelerator electrode ring TE1141 Cathode ring TE1142 Water interconnecting pipes between drift tubes Ti - T2 TE1135A 12 - T3 TE11358 T3 - T4 TE1135C T4 - T5 TE1135D Extension pipes 6 x TE1133A for drift tubes 2 x TE1133B Flexible water pipes for vapour cooling for water cooling between tube and boiler TE1145A between frame and tube TE1145B TE114EB tube outlet TE1145C Boiler for vapour cooling TE1110 Or Cooler for water cooling TE1194 Magnet flux ring TE1138 Water protection shield TE1139 Spark gap TE1140 Set of connectors (heater, cathode, accelerator electrode, getter -ion pump) TE1146 Cavities 3 x TE1191A 1 x TE1191B Input coupler TE1102 Load coupler for cavities 2 and 3 2 x TE1102 Blind flanges 3 x TE1157 Output coupler for cavity 4 TE1192 Arc detector TE1107 Magnet frame with coils TE1193 Tool set TE1137 Recommended circulator 2722 162 01561 (T100/V-N)

1April 1985 79 YK1198

LIMITING VALUES (Absolute maximum rating system) Heater voltage max. 9.5V Beam voltage max. 28kV Cold cathode voltage max. -30kV Beam current max. 7 A Body current max. 60mA Accelerator electrode current max. 6mA note 5 Collector dissipation max. 150kW Load VSWR max. 1.5 Temperature of envelope max. 175°C Static pressure in the body cooling system and in the water cooling jacket TE1194 max. 600kPa (6 bar)

TYPICAL OPERATING CONDITIONS As 60 kW CW amplifier Output power 60kW Beam voltage 27kV Beam current 4.9A note 6 Accelerator to cathode voltage = 17 kV Body current without drive 10mA at 60 kW 20mA Focusing coil current = 10A

Drive power, at 800 MHz 2 W note 7 Bandwidth at -1 dB points 5 MHz Operating efficiency 45%

80 November 1985 U.H.F. power klystron YK1198

7167437.1 IIIIIIMEMINIMMEIMEIIIMIUIIIIMMMMMMMMMEIIIIIMMMMMMMMM OEM MIMI MEMIIIIIMMIIIIIMMIMM MEM IMMEMIIIIIMEMINIIIIIMEMMMMMMMMIIIIIMMMMMMMMIIIIIIIIMMMM MEM MIME 111111MMEMMIIIIMIIMM111111 MIIMMIIIMIIIMIIII MEMENEMMIIupper limit MMMMMIIIMMMMMMMIIMWJAIIIMM mommommomnriammo EMMEN=IMMENEMIIMIIIMMEMIIMMINME MNIMIIMINENMEMO= MENIIIM/4 MEMNON= MMOIMMMMMIIMMIIIEMEIIMWAMEMMMIIMNIMIIM MIIIMMIIIIIIIMMPAIMMONIIMMEINIIIMEMINIMEMIIMME1111 MEM MOMMMMMMMMMMMMMIIMMIIIMMMMM MEMMIIIIIMMUMMIEMMENI MEM 4MEIIME MINIM= OPMMMIMMMMM MEMMEMIIIMUMMEIMINIIM 111111MMIIIMEMMIMIIIMMIMMII

0111111MNIMMEMEMIIIIIIIMMMIIIME MENEMIIIIMINFAMMEMIIIIIMMENIMEM 2=MENNEN =EMMA=11111111111111111MFAMMEMMINIMIIIIIM MMMMMMMMMMMMMM MEM %MN MIMIIIIMMIIMMO MENEW/IMIIIMEMMIIIIMIIIINMEMEMIIMIIMMINMEN MOW INEM1111111111MMEMMIIIMII MEM MEMENNEMMI11011111111MMENIUMMI 0 0 10 20 30 accelerator to cathode voltage (kV)

Fig. 3.

April '985 81

YK1210

S.H.F. POWER KLYSTRON

Forced -air cooled power amplifier klystron in metal -ceramic construction for the frequency band of 11.8 to 12.2 GHz. The tube has internal resonant cavities, beam focusing by means of permanent magnets, and an integral getter -ion pump. The YK1210 is intended to be used in vision and sound transmitters, and transposers. It may be operated with or without depressed collector voltage.

QUICK REFERENCE DATA

Frequency range 11.8 to 12.2 GHz Output power as vision transmitter 1.15 kW Gain 50 dB Cooling forced air

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by d.c. Cathode dispenser type Heater voltage Vf 5 to 6 V Heater current If 4 (< 5) A Heater peak starting current If p max. 8 A

Cold heater resistance Rfo -1: 20 mS1 Waiting time tw min. 120 s

COOLING Cathode socket and accelerating electrode low -velocity air flow 0.5 m3/min, 100 crn2 Body forced air, = 0.5 m3/min < 1000 kPa 110 bar) Collector forced air, 6 m3/min p < 1000 kPa (10 bar)

GETTER -10N PUMP SUPPLY Pump voltage, no-load condition 3 kV Internal resistance of supply 300

MOUNTING Vertical Forces on klystron terminals max 10 N. Bending moment max 10 Nm. To maintain correct focusing, the magnetic system should not be closer than 150 mm to external ferromagnetic materials, and no closer than 300 mm to external magnets.

lApril 1985 83 YK1210

MECHANICAL DATA Dimensions in mm Mass: 30 kg focusing magnet included

12052

131,251

slits 32,5

view 13 view on collector rotated through 90°

Gettenion pump

811101=1111

79,551 e321r

8050,5 view A 12151 116,25.1 A

84 April 1977 S.H.F. power klystron YK1210 } LIMITING VALUES (Absolute maximum rating system) Collector to cathode voltage max. 15 kV Body to collector voltage max. 4 kV Body to accelerator voltage max. 15 kV

Accelerator to cathode voltage max. 10 kV min. 7.5 kV Cathode current max. 650 mA Collector dissipation max. 7.5 kW Drift tube current, static, set value max. 10 mA

As vision transmitter at Wo sync = 1 kW dynamic, without depressed collector voltage max. 30 mA dynamic, with depressed collector voltage max. 60 mA

as transposer at Wo sync = 210 W dynamic, without depressed collector voltage max. 20 mA dynamic, with depressed collector voltage current cut-out region 20 to 50 mA measuring range max. 60 mA -ion pump voltage max. 4 kV min. 2.5 kV Pump current max. 15 mA Internal resistance of the pump supply min. 300 kn. Accelerator current max.-0.2 to +2 mA Series resistor in accelerator circuit min. 10 kit Temperature of focusing magnets max. 55 °C

Inlet temperature of cooling air max. 45 °C min. 5 °C

I1March1980 YK1210

TYPICAL OPERATION Frequency range 11.8 to 12.2 GHz Bandwidth (-1 dB) 12 MHz Power gain 50 (> 49) dB without depressed with depressed collector voltage collector voltage As vision transmitter Collector to cathode voltage 10.5 8.5 kV Body to collector voltage 0 2 kV Cathode current 0.4 0.4 A Output power, sync 1.15 1.15 kW

As sound transmitter Collector to cathode voltage 10.5 8.5 kV Body to collector voltage 0 2 kV Cathode current 0.4 0.4 A Output power 1.05 1.05 kW

As transposer (Wo nom. 100 W) Collector to cathode voltage 10.5 8.0 kV Body to collector voltage 0 2.5 kV Cathode current 0.4 0.4 A Output power, sync 105 105 W Intermodulation products < -57 < -57 dB

As transposer (Wo nom. 200 W) Collector to cathode voltage 12 9 kV Body to collector voltage 0 3 kV Cathode current 0.5 0.5 A Output power, sync 210 210 W Intermodulation products < -57 < -57 dB

86 December 1985 S.H.F. power klystron YK1210

GENERAL NOTES ON POWER SUPPLY DESIGN

range* internal resistance hum

Heater voltage 4.5 to 6.5 V The heater cIrrent Corresponding to (max. 5 A) should not exceed a non -smoothed three - value of 8 A when phase bridge rectifier switching on the supply

Body to collector 0/2.0/2.5/3.0 kV voltage 100 mA continuous <600 a < 0.1% 200 mA peak

Collector to cathode 8.0/8.5/9.5 kV with voltage" depressed collector voltage < 600 2 < 0.1% 10.5/11.5 kV without depressed collector voltage

Body to accelerator Via potentiometer. Total resistance .=-,- 5 MS2 and series voltage resistor 10 kS2 (suitable for 15 kV) between accelerator electrode and tap.

PRODUCT SAFETY

R.F. radiation R.F. power may be emitted not only through the normal output coupling but also through other apertures (for example, r.f. leaks). This r.f power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

Maximum allowable deviation from nominal or set values: a) ±2% during adjustment, if the published performance is to Pe attained. b)±1% fluctuation of the set values during operation to maintain the performance. It is recommended that additional taps be made500 V above and below the indicated values.

April 1985 87

YK1220 YK1223

U.H.F. POWER KLYSTRONS

For u.h.f. band I V/V vision transmitters and sound transmitters. Metal -ceramic construction, four external cavities, electromagnetic focusing and a high -stability dispenser type cathode. Suitable for vapour, vapour -condensation or water cooling. YK1223 comprising a non -intercepting annt,lar beam control elect -ode (ABC) for low-vo,tage beam modulation.

QUICK REFERENCE DATA

Frequency range 470 to 860 MHz Output power as vision transmitter 10 and 15 kW Cooling vapour, vapour condensation, or water

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by d.c. notes Cathode dispenser type Heater voltage Vf 5.0 V

Heater current If 19.5 to 22.5 A 1 Cold heater resistance Rfo 25 mS2 Waiting time 2 at Vf = 5.0 V twmin. 300 s at Vf = 4.3 to 4.5 V (black heat) twmin. 0 s

FOCUSING Focusing coil current 8 to 11 A Resistance of focusing coils

cold (20 °C) 7.2 to 9.5 S2 operating at an ambient temperature of 20 °C 11 S2

BEAM CONTROL for YK1220 6, 7 The accelerator electrode voltage allows adjustment of the beam current between 0 and 100 %.

BEAM CONTROL for YK 1223 6, 7 The klystron comprises a non -intercepting annular beam control electrode (ABC) for low -voltage beam modulation. See Fig. 7. Additionally the accelerator electrode voltage allows adjustment of the beam current between 0 and 100%.

GETTER -ION PUMP SUPPLY 3 Pump voltage, no-load condition 3 to 4 kV Internal resistance of supply 300ku During operation the heater voltage may not fluctuate more than +1 or -2 %.

December 1985 89 1 YK1220 YK1223 ) MECHANICAL DATA

Dimensions in mm 0 - 0176 0156

-016440

§ g

11i1 II

`1-4/4.4-11

ABC- 1B eleatrode YK 1223 Heater r

Better -an pump Fig. 1.

90 November 1985 U.H.F. power klystrons YK1220 YK1223

- 226

I air inlet 0 50 -104

rn 4.1 tz) 0

1.-71 Ln

0 80 kl- 141---234 4-30 453.4-'2--NJ

6 tapped holes M6 on 104mm pc dia Connection for focusing coils

Fig. 2.

VII 722 US 4,

lApril 1985 91 YK1220 YK1223

MASS AND DIMENSIONS Klystron net approx. 25 kg gross approx.77 kg outline dimensions of packing (cm) 170 x 45 x 46 Cavities approx.45 kg Magnet frame with coils approx. 220 kg

MOUNTING Mounting position: vertical with collector up. To remove the tube from the magnet frame a total free height of 2.5 m, excluding hoist, is required.

COOLING Cavities 1, 2, 3 and 4, drift tubes 4 and 5 and cathode socket forced air, Ti max. 50 °C q 1.2 m3/min, = 350 Pa (3.5 mbar) Cathode socket only, during black heat forced air, Ti max. 50 °C, q '-- 0.15 m3 /min Collector vapour with boiler TE1189C, note 4 volume of water converted to steam: 27 cm3/min per kW collector dissipation resulting in 43 t/min steam per kW collector dissipation; water or vapour condensation (with water jacket TE1189A) q = 7 to 18 t/min, To max. 90 °C, see Fig. 4. For 10 C./min, = 16 kPa (0.16 bar).

2. R.F. radiation R.F. power may be emitted through apertures other than the normal output coupling (for example r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

Instruction manual For detailed mounting and tuning instructions see klystron instruction manual, delivered with each tube.

92 December 1985 U.H.F. power klystrons YK1220 YK1223

ACCESSORIES Correct operation can be guaranteed only V approved accessories are used. notes Collector radiation suppressor TE11828 Spark gap TE1183 Set of connectors (heater, cathode, accelerator electrode, getter -ion pump) TE1184 Magnet frame with coils TE1188

water cooling or vapour vapour conden- cooling sation cooling

Collector cooling jacket TE1189A TE1189C

Temperature sensor TE1199 11 Tool set TE1190 Cavities 4 x TE1185

Inlet coupler and load coupler for cavities 2 and 3 3 x TE1186C 12 Output coupler, 3 1/8 inch, 90° -elbow TE1187C 13, 14 Arc detector TE11078 Recommended circulators (optional) 470 to600 MHz 2722162 01551 (T100/IV-N) 600 to 800 MHz 2722162 01561 (T100/V-N) 790 to 1000 MHz 2722162 03261 (T100/V-3-N)

LIMITING VALUES (Absolute maximum rating system) Heater voltage max.6.5 V Beam voltage max. 21 kV Cold cathode voltage max. -21kV Beam current max. 3 A Body current max. 100mA

Accelerator electrode current max. 5 mA 5 Collector dissipation max. 42 kW Load VSWR max. 1.5 Temperature of tube envelope max. 175°C Static pressure in the cooling system TE1189A max. 600 kPa ( 6 bar) Focusing coil current max. 11.5 A ABC -electrode voltage with respect to cathode for YK1223 max. -1kV

PERFORMANCE DATA of ABC -electrode for YK1223 min.typ.max. Capacity 70 75 85 pF D.C. current at -1000 V - 0.5 mA The d.c. electrode current may rise up to max. 1 mA during life time. The applied modulator should be designed for an ABC -electrode currant of at least 1 mA.

iDecember 1985 93 YK1220 YK1223

TYPICAL OPERATING CONDITIONS (modulation electrode YK1223 at cathode potential) As 10 kW vision transmitter notes

Standard CCIR: I G G I 10 Channel 21 45 68 Output power, peak sync. 11 11 11 kW Beam voltage 13 13.5 15 15 16 16 kV Beam current 1.95 2.05 1.55 1.55 1.5 1.5 A 6 Accelerator to cathode voltage 12 12.5 10 10 10 -10 kV 7 Body current without drive 2,- 10 2,- 10 -7 7 mA at black level 35 35 30 21--. 30 mA Focusing coil current 10 10 9 -4-- 9 A Drive power, peak sync., max. 10 15 6 10 4 8 W 8 Operating efficiency 43 40 47 47 45 45 % Minimum efficiency 42 40 46 44 44 43 %

Sound transmitter

Output power 1.1 2.2 5.5 kW

Beam voltage 13 16 13 16 18.5 kV Beam current 0.38 0.3 0.5 0.4 0.8 A 6

Accelerator to cathode voltage ,-.... 3.5 2,-. 3.02,- 4.5 "--3.5 2.-- 6.0 kV 7 Body current "-- 15 --t- 15 "-- 15 mA Focusing coil current --,- 10 "--. 10 ,=-- 10 A 9 Drive power, channel 21 4 4 4 W 8 channel 45 2 2 2 W 8 channel 68 1 1 1 W 8 Bandwidth at -1 dB points > 300 > 300 > 300 kHz Operating efficiency 22 34 37 %

94 December 1985 U.H.F. power klystrons YK1220 YK1223

As 15 kW vision transmitter notes

Standard CCIR: G I G 10 Channel 21 45 68 Output power, peak sync. 16.5 16.5 16.5 Beam voltage 16.5 15.5 17.5 17.5 19 19 kV Beam current 2.35 2.6 2.0 2.0 1.95 1.55 A 6 Accelerator to cathode voltage A-- 13.5 14.5 12 -12-12 12 kV 7 Body current without drive - 10 10 7 7 7 7 mA at black level 50 70 45 -45 40 =40 mA Focusing coil current ~- 10 10 9 9 9 8 A Drive power, peak sync. max. 10 15 8 10 6 10 W 8 Operating efficiency 43 43 47 47 45 45 % Minimum efficiency 42 40 46 44 44 43 %

Sound transmitter Output power 1.65 3.3 kW

Beam voltage 15.5 19 15.5 19 kV Beam current 0.37 0.3 0.63 0.5 A 6 Accelerator to cathode voltage 3.5x 3.0 5.0 4.5 kV 7 Body current 15 15 mA Focusing coil current 10 10 A 9 Drive power, channel 21 4 4 W 8 channel 51 2 2 W 8

channel 68 1 1 W 8 Bandwidth at -1 dB points 300 300 kHz

Operating efficiency 29 34 %

April 1985 95 YK1220 YK1223

Notes 1. When switching on the heater voltage, the heater current must never exceed a peak value of 65 A. 2. In case of a mains failure an interruption up to 30 s can be tolerated without new waiting time. After min. 10 minutes of stand-by heating time at 4.3 to 4.5 V (black heat), the beam current may be switched on; the heater voltage must be increased to its nominal value of 5.0 V simultaneously. Continuous black heat periods should not exceed two weeks and should be separated by similar periods of rest or full operation. 3. To ensure that the klystron is always ready for operation, operate the ion getter pump at least every 6 months (preferably every 3 months) during storage. For derails see klystron instruction manual. 4. In order to avoid corrosion of the cooling system, coolant water must be pure and deionized (resistivity min. 100 k!2 -cm(. 5. The accelerator electrode voltage must not be positive with respect to the body (ground). 6. For cathode current versus accelerator -to -cathode voltage, see Fig. 5. 7. The accelerator electrode has to be connected to its supply (power supply or voltage divider) via a 10 kS2 resistor. For adjusting the cathode current a voltage divider should be dimersioned according to an accelerator electrode current of max. 1.5 mA. 8. The drive power is defined as the power delivered to a matched load. 9. Value is not critical. It may be set in accordance to the vision klystron focusing coil current. Ope- ration of one vision and one sound klystron focusing units in series is admitted. 10. Standard CCIR-G: klystron tuned to frequency response according to the specification CCIR-G. Standard CCIR-I: klystron tuned to frequency response according Fig. 3.

Fig. 3.

96 April1985.1 U.H.F. power klystrons YK1220 YK1223

11. Optional. 12. Standard equipment is directly controlled on the side of trolley. In case of front panel control TE1186A is available instead of TE1186C. 13. Output coupler 1 5/8" (TE11878 for direct control, TE1187A for front panel control) is also available. Please contact manufacturer. 14. The output couplers comprise a standard loop. For several channels a modified loop is to be used. Please indicate channel when ordering

vZ733,3C 2 1717131/7.1 100 (°C) 90 011101

70 7 -.

60 1 I T01

2 40 / 30

10 vapour _....;water vapour rscondensation cooling; i 0 1 00 0,2 0,4 0,6 '0 8 5 10 15 0 (I/min kW) Accelerator to cathode voltage 1kV) Fig. 4. Fig. 5.

7206691 50

800 V I 40 800 V

30 400 V

20 200 V

10 100 V Fig. 6 ABC -operation for YK1223. Parameter: modulation voltage -Vm

0 (with respect to cathode). 5 2 25 3 3,5 unmodulated beam currer tIA)

December 1985 97

YK1230 YK1233

U.H.F. POWER KLYSTRONS

For u.h.f. band IV/V vision transmitters and sound transmitters. Metal -ceramic construction, four external cavities, electromagnetic focusing and a high -stability dispenser type cathode. Suitable for vapour, vapour -condensation or water cooling. YK1233 comprising a non -intercepting annular beam control electrode (ABC) for low-vcltage beam modulation.

QUICK REFERENCE DATA

Frequency range 470 to 860 MHz Output power as vision transmitter 20, 25 and 30 kW Cooling vapour, vapour condensation, or water

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING, indirect by d.c. notes Cathode dispenser type Heater voltage Vf 5.0V

Heater current If = 19.5 to 22.5 A 1

Cold heater resistance Rfo 25 mS2 Waiting time 2

at Vf = 5.0 V tw min. 300 s

at Vf = 4.3 to 4.5 V (black heat) tw min. 0 3

FOCUSING Focusing coil current 8 to 11A Resistance of focusing coils cold (20 °C) 7.2 to 9.5!a operating at an ambient temperature of 20 °C S 11!a

BEAM CONTROL foYK1230 6, 7 The accelerator electrode voltage allows adjustment of the beam current between 0 and 100 %.

BEAM CONTROL for YK1233 6, 7 The klystron comprises a non -intercepting annular beam control electrode (ABC) for low -voltage beam modulation. See Fig. 7. Additionally the accelerator electrode voltage allows adjustment of the beam current between 0 and 100%.

GETTER -ION PUMP SUPPLY 3 Pump voltage, no -loan condition 3 to 4 kV Internal resistance of supply 300 kit 'During operation the heater voltage may not fluctuate more than ±1 or -2 %.

yDecember 1985 99 YK1230 YK1233

MECHANICAL DATA Fr

Dimensions in mm

0126 0186

-7"

AK - trod, YK 1233 °Ai Heater

cutter -ion pop Fig. 1.

100 November 1985... U.H.F. power klystrons YK1230 YK1233

-264

air inlet

050 3 1/8 EIA

0.0

0C)(-60.°

st §

KMMit (.4 Ag , 74r ' Nir 4.4 44 M5 0 80 234 30 .16 4531' 2

4 Connection for ta focusing coils

Fig. 2.

CX 722 SXS.S

April 1985 101 YK1230 YK1233

MASS AND DIMENSIONS Klystron net approx. 40 kg gross approx. 90 kg outline dimensions of packing (cm) 170 x 45 x 46 Cavities approx. 45 kg Magnet frame with coils approx. 220 kg

MOUNTING Mounting position: vertical with collector up. To remove the tube from the magnet frame a total free height of 2.5 m, excluding hoist, is required.

COOLING Cavities 1, 2, 3 and 4, drift tubes 4 and 5 and cathode socket forced air, Ti max. 50 °C q 1.2 m3/min, Jp = 350 Pa (3.5 mbar) Cathode socket only, during black heat forced air, Ti max. 50 °C, q = 0,15 m3/min Collector vapour with boiler TE1189D, note 4 volume of water converted to steam: 27 cm3 /min per kW collector dissipation resulting in 4312/min steam per kW collector dissipation; water or vapour condensation (with water jacket TE1189F) q = 16 to 36 t/min, To max 90 °C, see Fig. 4. Fo- 10 If/min, Op =16 kPa (0.16 bar).

PRODUCT SAFETY 1. X-radiation Correct operation of the tube can be guaranteed only if a set of accessories, approved by the tube manufacturer, is used. The operating tube generates X-rays which can penetrate the ceramic parts of the tube envelope. In order to reduce the radiation at any accessible points to an off icizIly acceptable, non -dangerous level the tube must be shielded and any possible radiation path blocked by at least 1 mm of brass or an equivalent depth of non-magnetic X-ray absorbing material. The proper use of accessories will provide the necessary shielding.

2. R.F. radiation R.F. power may be emitted through apertures other than the normal output coupling (for example r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

Instruction manual For detailed mounting and tuning instructions see klystron instruction manual, delivered with each tube.

102 December 1985 U.H.F. power klystrons YK1230 YK1233

ACCESSORIES Correct operation can be guaranteed only if approved accessories are used. notes Collector radiation suppressor TE1182B Spark gap TE1183 Set of connectors (heater, cathode, accelerator electrode, getter -ion pump) TEl Magnet frame with coils 7E1188

water cooling or vapour vapour conden- cooling sation cooling

Collector cooling jacket TE1189F TE1189D

Temperature sensor TEl 11 Tool set 7E1190 Cavities 4 x TE1185

Inlet coupler and load coupler for cavities 2 and 3 3 x TE1186C 12 Output coupler, 3 1/8 inch, 90° elbow TE1187C 13 Arc detector TE1107B 14 Recommended circulators (optional) 470 to600MHz 2722162 01551 (7100/IV-N) 600 to800MHz 2722162 01561 (T100/V-N) 790 to1000MHz 2722162 03261 (T100/V-3-N)

LIMITING VALUES (Absolute maximum rating system) Heater voltage max.6.5 V Beam voltage max. 26kV Cold cathode voltage max. -26 kV Beam current max.3.8A Body current max. 120mA Accelerator electrode current max. 5 mA 5 Collector dissipation max. 70 kW Load VSWR max.1.5 Temperature of tube envelope max. 175°C Static pressure in the cooling system TE1189F max. 600 kPa (6 bar) Focusing coil current max. 11.5A ABC -electrode voltage with respect to cathode for YK1233 max. -1kV

PERFORMANCE DATA of ABC -electrode for YK1233 min. typ. max. Capacity 70 75 85 pF D.C. current at -1000 V 0.5 mA The d.c. electrode current may rise up to max. 1 mA during life time. The applied modulator should be designed for an ABC -electrode current of at least 1 mA.

December 1985 103 YK1230 YK1233 I TYPICAL OPERATING CONDITIONS (modulation electrode YK1233 at cathode potential) As 20 kW vision transmitter notes Standard CCIR-G 9 Channel 21 45 68 Output power, peak sync. 22 22 22 kW Beam voltage 19.5 20 22 kV Beam current 2.7 2.45 2.2 A 6

Accelerator to cathode voltage z.-- 15 ,--- 14 .-- 13 kV 7 Body current without drive - 10 z.,- 7 - 7 mA at black level .--.= 50 --t,' 45 ,-,-- 40 mA Focusing coil current - 10 -9 =,-- 9 A Drive power, peak sync. 15 10 10 W 8 Operating efficiency 42 45 45 % Minimum efficiency 41 44 44 %

Sound transmitter Output power 2.2 4.4 kW

Beam voltage 19.5 22 19.5 22 kV Beam current 0.4 0.35 0.6 0.55 A 6 Accelerator to cathode voltage --,:, 3.5 -=. 3.0 -.-- 5.0 k: 4.5 kV 7

Body current =.-- 15 ',-- 15 mA

Focusing coil current --z-- 10 ,-- 10 A 9 Drive power, channel 21 4 4 W 8 channel 45 2 2 W 8

channel 68 1 1 W 8 Bandwidth at -1 dB points 300 > 300 kHz

Operating efficiency 28 37 %

104 April 1985 U.H.F. power klystrons YK1230 YK1233

As 25 kW vision transmitter notes

Standard CCIR: G I 10 Channel 21 45 68 Output power, peak sync. 27 27 27 kW Beam voltage 21 19 21.5 21.5 23.5 23.5 kV Beam current 3 3.45 2.8 2.8 2.5 2.55 A 6 Accelerator to cathode voltage x 162. 17.5 15 x15x14 x14 kV 7 Body current without drive x 10 x 10 x7 7 x7 x7 mA at black level x 60 ft 80 2. 50 50 x45x50 mA Focusing coil current x 10 ft 10 xg 9 x9 A Drive power, peak sync., max. 15 25 10 20 10 20 W 8 Operating efficiency 42 41 45 45 46 45 % Minimum efficiency 41 40 44 44 44 43 %

Output power 2.7 _..-,5.5 kW Beam voltage 19 23.5 19 23.5 kV Beam current 0.47 0.38 0.7 0.55 A 6 Accelerator to cathode voltage 2. 4.7 ft 4.1 ft 5.5 ft 4.5 kV 7 Body current ft15 ft15 mA Focusing coil current 2= 8 ft10 A 9 Drive power, channel 21 4 4 W 8 channel 45 2 2 W 8

channel 68 1 1 W 8 Bandwidth at -1 dB points >300 > 300 kHz Operating efficiency 30 41 %

I April 1985 105 YK1230 YK1233

TYPICAL OPERATING CONDITIONS (continued) modulation electrode YK1233 at cathode potential As 30 kW vision transmitter notes

Standard G I M K G I M K G M K 10 Channel 21 14 21 42 42 42 62 69 62 Output power, peak sync. 32 32 32 32 32 kW Beam voltage 23 23 21 24 25 kV Beam current 3.3 3.3 3.7 2.95 2.85 A 6 Accelerator to cathode voltage =-, 17.517.518.5 16.5 16 kV 7 Body current without drive 10 10 10 7 7 mA at black level 2-, 50 50 50 45 40 mA

Focusing coil current =1: 9 9 10 8 8 A Drive power, peak sync., max. 25 25 25 20 20 W 8 Operating efficiency 42 42 41 45 45 Minimum efficiency 41 41 40 44 44

Sound transmitter Output power kW

Beam voltage 23 25 kV Beam current 0.42 0.39A 6 Accelerator to cathode voltage 2. 4.5 2-, 4.2 kV 7 Body current =--15 mA Focusing coil current 8 A 9 Drive power, Standard' M G,K

channel 14 21 4 W 8 channel42 42 2 W 8

channel69 62 1 W 8 Bandwidth at -1 dB points ,- 300 kHz Operating efficiency 34

'Standards: CCIR-G, RTMA-M, RTMA-M and CCIR -K.

106 December 1985 U.H.F. power klystrons YK1230 YK1233

Notes

1. When switching on the heater voltage, the heater current must never exceed a peak value of 65 A. 2.In case of a mains failure an interruation up to 30 s can be tolerated without new waiting time. After min. 10 minutes of stand-by heating time at 4.3 to 4.5 V (black heat, the beam current may be switched on; the heater voltage must be increased to its nominal value of 5.0 V simultaneously. Continuous black heat periods should not exceed two weeks and should be separated by similar periods of rest or full operation. 3.To ensure that the klystron is always ready for operation, operate the ion getter pi..mp at least every 6 months (preferably every 3 months) during storage. For details see klystron instruction manual. 4.In order to avoid corrosion of the cooling system, coolant water must be pure and deionized (resistivity min. 100 kS2-cm). 5.The accelerator electrode voltage must not be positive with respect to the body (ground). 6.For cathode current versus accelerator -to -cathode voltage, see Fig. 5. 7.The accelerator electrode has to be connected to its supply (power supply or voltage divider) via a 10 kS2 resistor. For adjusting the cathode current a voltage divider should be dimensioned according to an accelerator electrode current of max. 1.5 mA. 8.The drive power is defined as the power delivered to a matched load. 9.Value is not critical. It may be set in accordance to the vision klystron focusing coil current. Operation of one vision and one sound klystron focusing unit in series is admitted. 10.Standard CCIR-G: klystron tuned to frequency response according to the specification CCIR-G. Standard CCIR-I: klystron tuned to frequency response according Fig. 3. Standard CCIR-M: klystron tuned to 'requency response according to the specification CCIR-M.

25/////////////////z

0 1 2 3 4 5 6 tif (MHz) Fig. 3. 0,25

11. Optional. 12. Standard equipment is directly controlled on the side of trolley. In case of front panel control TE1186A is available instead of TE1186C. 13. The output couplers comprise a standard loop. For several channels a modified loop is to be used. Please indicate channel when ordering. 14. One arc detector for cavity 4 is required. For output power > 15 kW an addlional arc detector for cavity 3 is recommended.

December 1985 107 YK1230 YK1233

vr. 11 84 733146 100 T 1°C) 90 TOm1:01 MEE= 1 80 FAI t0 3 70 .c . .

60 1 max

50 =VA 40 h i., 30

EVA 20

10 Mil NMMEM IMFAM 11111111111E vapour water WAPAIMINI 8 8 vapour ""condensaticorcooling.' FARM MN" MEMLEI NIMIll 1 1 11111111111111M111111lirIBMIIIM MEM 0,4 00 0 2 0,6 0 8 5 10 15 20 25 0 (1/min kW) Acceleratorto cathode voltage (kV)

Fig. 4. Fig. 5.

7285694 50 -v tR I 40 800 V 5

20 200 V

10 100y

150 2 2 5 3 3.5

unmodulated beam currentI A

Fig. 6 ABC -operation for YK1233. Parameter: modulation voltage -VM (with respect to cathode).

108 December 1985 YK1240

HIGH -POWER KLYSTRONS

Fixed frequency, high -power klystron in metal -ceramic construction, for use in scientific and industrial applications. The tube has internal cavities, solenoid focusing, and a high stability dispenser -type cathode.

QUICK REFERENCE DATA

Centre frequency (fixed tuned) 1300 MHz Bandwidth note 1 Pulse output power 330 kW Cooling collector water body air

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by a.c. Cathode dispenser type

min. typ. max. Heater voltage V f 7 7.8 8.5 V note 2 Heater current If 31 32 33 A Cold heater resistance Rfo - 30 - rnS2 Waiting time tw 10 15 - minutes

FOCUSING: electromagnetic

Solenoid current 11 12 13 A Solenoid voltage 200 V

GETTER -ION PUMP SUPPLY Operating voltage 3 4 5 kV Operating current - 5.10-3 5 mA Internal resistance of power supply 300 - la2

Notes 1. Bandwidth, see Fig. 1. An input signal with an edge of1 ps will be transmitted without discernable overshooting of the output signal. Fig. 1. 2.Typical values are adjusted at the supplied 10% heater transformer, which is mounted inside T of the oil container (primary voltage 2:20 V).

yNovember 1985 109 YK1240

MECHANICAL DATA

Dimensions in mm

Heater connection Cathode Focusing electrode connection connection

Sealing ring

Pole flange gun ode

Getter -ion pump cannel lion for arcdetector Klystron flange R output (CPR 65061

208 1717

Pole flange R F input 834 collector / IN -f emote) Flangefor' cooling water jacket and lifting yoke

VX '22 740

Fig. 2.

110 March19851 High -power klystron YK1240 J

TE 1243

2300 - TE 1247

Getter -ion pump 500 1180 450

1500 TE 1241

240

1 I 480

50 I t 1100 .... VX 722 741

Fig. 3 Complete assembly consisting of tube, trolley, oil tank, focus mount, r.f. transition and operational lead shieldings.

iMarch 1985 111 YK1240 J COOLING Cooling is achieved by demineralized water with 10 % stabilized glycol added min. typ. max. pressure in any cooling water circuit - - 900 kPa (= 9 bar) pressure drop - 100 kPa (= 1 bar) Collector cooling water flow rate 8 15 30 V/min inlet water temperature +15 +20 +30 °C outlet water temperature +15 +25 +60 oc

MASS Net mass of complete assembly 350 kg

DIMENSIONS Tube and mounting frame see drawings Required ground clearance for lifting hoist min. 450 cm Capability of hoist min. 250 kg

MOUNTING vertical, collector up

R.F. CONNECTORS Input N -type, female, 50 St Output waveguide WR650 / CRP650G

OIL CONTAINER, contents approx. 70 4

112 March1985'1 High -power klystron YK1240

ACCESSORIES A. Tube parts (factory fitted) The tube will be shipped without additional factory fitted parts.

B. Operational parts for first equipment Operational frame, consisting of trolley, oil container, heater transformer, di/dt sensor, focusing coil unit and cathode plug -connections TE1241 Collector water cooling jacket TE1243 Temperature sensors for water inlet, -outlet and collector TE1245 30° waveguide bend (H -plain) TE1247 Arc detector TE1249

C. Optional parts H.V. cable with R3 plugs, length 6 m TE1159 H.V. dummy plug R3 TE1161

D. Parts for handling Yoke for lifting klystron vertically TE1251 Lifting frame for storage and any movement of a burnt -out or spare klystron in any other position than vertical TE1253

iMarch 1985 113 YK1240

LIMITING VALUES (Absolute maximum rating system) Heater voltage, a.c. max. 8.5 V Heater current, a.c. max. 33 A note 1 Cathode voltage to body max. -65 kV Cathode current max. 12 A Collector dissipation maz. 650 kW note 2 Pulse output power max. 330 kW

Pulse length max. 2 s Ratio max. 1/100 Load VSWR max. 1.2 Input power, d.c. max. 650 kW

TYPICAL OPERATING CONDITIONS 325 kW pulse output power (VSWR < 1.1) typ. Cathode voltage -60 kV Cathode current 11 A Input power, d.c. 600 kW Collector dissipation 330 kW

Efficiency 50 % Drive power 27 W

Pulse length 1.5 s Ratio 1/200

PERFORMANCE DATA Phase shift to cathode current < 20 °/A Phase shift to rel. cathode voltage < 20 °/% R.F. output to rel. cathode voltage < 0.3 dB/% Harmonic levels to fundamental < 30 dB Signal-to-noise ratio < 50 dB

Notes 1. When switching on the heater voltage, the heater current must never exceed a peak value of 40 A. 2. Maximum dissipation can be tolerated up to 0.5 s.

114 March1985-1 High -power klystron YK1240

INSTALLATION AND OPERATION REQUIREMENTS A. Required interlocks 1. Fast switch -off of the drive power within 10 ms has to be done if the arc detector and/or r.f. -eflection indicator is activated. An arc detector must be provided at the output waveNide. 2. A fast switch -off of the beam supply has to be provided when one of the following situationsoccurs: a) the beam current increases rapidly, b) the solenoid current deviates by more than ±5% from the adj.Jsted value, c) when the body current exceeds 500 mA. The switching sensors and the discharge facilities for the power supply must be designedso that a copper wire of 0.35 mm diameter, connected to the power supply instead of the klystron (length approx. 1 cm/kV), will not be destroyed, if the full operating voltage is switchedon and applied to the wire. 3. The mains for the beam power supply ha; to be switched off within 100ms when one of the following situations occur: a) the collector temperature monitor (with internal thermocouple) is activated (adjusted to maximum temperature), b) the monitored temperature differences between inlet and outlet in the collector and/orbody cooling circuits are too high; max. values permitted: .10 = 30 K c) the beam current either exceeds the limiting value or increases by more than 30%or max. 2 A above the adjusted value, d) the water flow of the collector and body cooling circuit decreases below the required minimum value.

Restarting is not allowed within 10 s after any interruption.

B. Switching -on and off sequence Switching -on sequence 1. Getter -ion pump supply on. 2.Check that the pump current is < 1 mA. 3. Heater voltage supply on. 4.Wait for preheating time (min. 10 minutes). 5. Cooling of focusing. 6. Collector cooling supply on. 7.Solenoid current supply on. 8. R.F. drive on. 9.Beam voltage supply on. Switching -off sequence 1. Beam voltage supply off. 2. All other supplies and cooling circuits cff.

--.1 November 1985 115 YK1240

C. Radiation dangers R.F. radiation R.F. power may be emitted not only through the normal output coupling but also through other apertures (for example, r.f. leaks). This r.f. power may be sufficiently ntense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

X-radiation A highly dangerous intensity of X-rays may be emitted by tubes operating at voltages higher than approximately 5 kV. Adequate protection (X-ray shielding) for the operator is then necessary. The emisson intensity of X-rays may correspond to a value of voltage much higher than that expected from the actual value applied to the tube. Poor focusing may result in excessive X-radiation. This tube and accessories are equipped with a lead shielding which under normal conditions reduces the radiation values below 0.75 mR/h, measured at a distance of 1 m from the tube assembly.

116 March1985-1 YK1250

CONTINUOUS -WAVE HIGH -POWER KLYSTRON

Water cooled, high efficiency, fixed frequency, continuous -wave high -power klystron in metal -ceramic construction, for use in scientific and indust-ial applications. The tube has internal cavities, solenoid focusing, beam control by accelerator anode and a high stability dispenser -type cathode.

QUICK REFERENCE DATA

Centre frequency (fixed tuned) 999.3 MHz Bandwidth at saturation (-1 dB points) 4 MHz Output power 400kW Cooling water

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by a.c. or d.c. Cathode dispenser type

min. typ. max. Heater voltage Vf 8.0 8.5 9.0 V Heater current If 24 26 28 A notes 1, 2 Cold heater resistance Rfo - 30 - mS2 Waiting time tw 10 - - minutes

FOCUSING: electromagnetic Solenoid current - - 20 A Solenoid voltage - - 200 V Solenoid resistance - 10 - 11

GETTER -ION PUMP SUPPLY Operating voltage 3 3.3 4 kV Operating current - 10-3 80 mA Internal resistance of power supply 25 300 - kD

INovember 1985 117 YK1250

MECHANICAL DATA

Dimensions in mm

Cathode,heater

Anode 230 1

400

535

200-01 -a- 2 0 - 310

Getter -ion pump R. F output

# 290 lo ,o o of 115

a Air inlet for window cooling Body cooling, r.f. input Klystron 2710 flange

1433

VX7217391

Fig. 1.

118 INovember 1985 Continuous -wave high -power klystron YK1250

Tube mounted in the mounting frame with solenoid.

V3 722 7361

Fig. 2.

CNovember1985 119 1 YK1250

COOLING min. typ. max. Collector demineralized or distilled water with 10% stabilized glycol added 350 450 550 l/min note 3 pressure drop 100 - kPa 1= 1 bar)

Body circuit I demineralized or distilled water with 10% stabilized glycol added 5 7 - Umin note 3 pressure drop 300 - kPa 1= 3 bar) Body circuit II demineralized or distilled water with 10% stabilized glycol added 7 9 - Q/min note 3 pressure drop - 300 - kPa 1= 3 bar) Cathode socket and accelerator anode air 2 - - m3/min pressure drop - - 500 Pa (= 5 mbar) Output window air - 2 - m'/min pressure drop - 2 - kPa (= 20 mbar) Inlet water temperature - - +50 °C Inlet air temperature - - +45 °C

MASS Net mass YK1250 300 kg Mounting frame with solenoid 750 kg Capability of hoist min.600 kg

DIMENSIONS Tube and mounting frame see drawings Required ground clearance for lifting hoist min. 450 cm

MOUNTING vertical, cathode up

R.F. CONNECTORS Input N -type, female Output waveguide R9 (WR - 975)

120 March1985'1 Continuous -wave high -power klystron YK1250

ACCESSORIES A. Tube parts Waveguide coupling iris (if required) note 4 Magnet for getter -ion pump (factory fitted)

B. Operational parts for first equipment Collector water cooling jacket TE1200 Waveguide transition, R9 TE1201 note 5 Anode ring TE 1202 Cathode ring TE 1203 H.V. connection unit with four R3 sockets TE1163A note 6 Klystron trolley TE1204 Focusing coil unit TE 1205 Connection cables heater/cathode 2 x TE1206A heater 1 x TE1206B accelerator anode 1 x TE1206C

C. Parts for handling note 7 Yoke for lifting 7E1205 and TE1163 TE1208 Yoke for lifting and tuming a klystron from any position TE1209 Supporting frame for storage and any movement of burnt -out or spare klystrons in any position other than vertical TE1210 Trolley for transportation of a klystron in horizontal position without lifting gear TE1211

iMarch 1985 121 YK1250

LIMITING VALUES (Absolute maximum rating system) Heater voltage max. 10% above specified values Heater current Cathode voltage to body (ground) max. -61kV Cold cathode voltage to body (ground) max. -65kV Cathode current max. 12A Accelerator anode voltage to cathode max. 41 kV note 8 Cold accelerator anode voltage to cathode max. 45kV Accelerator anode current max. 10mA Collector dissipation max. 700kW note 9

Dissipation body circuit I max. 10kW Dissipation body circuit II max. 10kW C.W. output power max. 420kW Load VSWR max. 1.2 note 10 Temperature rise, window cooling air flow max. 70 K

TYPICAL OPERATING CONDITIONS 350 kW operation into matched load min. typ. max. Cathode voltage to body (ground) -54 -56 -57 kV Cathode current 0 10.4 11 A Input power, d.c. 614 kW Accelerator anode voltage to cathode 31 kV

Accelerator anode current 1 5 mA C.W. output power, VSWR -<._.1.1 330 350 - kW Collector dissipation 264 500kW note 9

Efficiency 55 57 % C.W. drive power 20 40W

400 kW operation into matched load Cathode voltage to body (ground) -60.3 kV Cathode current 11.8 12 A Input power, d.c. 712 kW Accelerator anode voltage to cathode 34.5 40kV

Accelerator anode current 0.3 5 mA

C.W. output power, VSWR < 1.1 418 kW Collector dissipation 294 500kW note 9 Efficiency 56 58 - % C.W. drive power 9 40W

122 November 1985 Continuous -ways high -power klystron YK1250

PERFORMANCE DATA Phase shift to cathode current < 20°/A

Phase shift to rel. cathode voltage 20 (3/%

Phase shift to r.f. drive 12 °/dB

R.F. output to rel. cathode voltage 0.3dB/% Spurious noise amplitude

for f < 300 Hz 3 %

for f = 300 to 1000 Hz < 1 %

for f > 1000 Hz < 0.5 %

Notes

1. When switching on the heater voltage, the heater current must never exceec a peak value of 60 A. 2. Required values are given with each tube. 3. For further recommendations please contact the tube manufacturer. 4. Separately shipped together with each tube and to be returned together with each Durnt-out tube. 5. It is recommended to return the coax al waveguide transition together with burnt -out tube for inspection. 6. R3 sockets are only usable together with optional R3 plugs. 7. These parts are needed for all handling operations at the site (only one set required). 8. The accelerator anode voltage may never become positive with respect to the body (ground). 9. It must be observed that for operation with reduced r.f. drive the maximum value for collector dissipation is not exceeded. 10. For reflections exceeding this value please contact the tube manufacturer.

iMarch 1985 123 YK1250

INSTALLATION AND OPERATION REQUIREMENTS A. Required interlocks 1. Fast switch -off of the drive power within 10 ms has to be done if the arc detector and/or r.f. reflection indicator is activated. An arc detector must be provided a-. the knee of the outputwave - guide. 2. A fast switch -off of the beam supply has to be provided when one of the following situations occurs: a) the beam current increases rapidly, b)the solenoid current deviates by more than ±5% from the adjusted value. The switching sensors and the discharge facilities for the power supply must be designed so that a copper wire of 0.35 mm diameter, connected to the power supply instead of the klystron (length approx. 1 cm/kV), will not be destroyed, if the full operating voltage is switched on and applied to the wire. 3. The mains for the beam power supply has to be switched off within 100 ms when one of the following situations occur: a) the beam current either exceeds the limiting value or increases by more than 30% or max. 2 A above the adjusted value, b)the pump current exceeds 10 mA , clthe collector temperature monitor (with internal thermocouple) is activated (switch -off value adjustable between 30 and 60 K above the water inlet temperature), d)the monitored temperarure differences between inlet and outlet in the collector and/or body cooling circuits are too high; max. values permitted: collector JO = 15 K body circuit I d0 = 15 K body circuit II JO = 15 K elthe water flow of the collector and body cooling circuits decreases below the required minimum value, f)the air flow for the r.f. window and cathode cooling decreases below the required minimum value. 4. Switch -off the heater voltage for pump current > 4 mA. Restarting is not allowed within 10 s after any interruption.

B. Switching -on and off sequence Switching -on sequence 1. Cathode cooling on. 2. Getter -ion pump supply on. 3. Check that the pump current is < 10 pA. 4. Heater voltage supply on. 5. Wait for preheating time (min. 15 minutes). 6. Cooling air r.f. window on. 7. Cooling body circuitsI and II on. 8. Collector cooling supply on. 9. Solenoid current supply on. 10. Check that the heater current has reached the adjusted value -± 0.5 A. 11. R.F. drive on. 12. Beam voltage supply on. Switching -off sequence 1. Beam voltage supply off. 2. All other supplies and cooling circuits off.

124 November 1985 Continuous -wave high -power klystron YK1250

C. Radiation dangers R.F. radiation R.F. power may be emitted not only thrcugh the normal output coupling but also througi other apertures (for example, r.f. leaks). This r.'. power may be sufficiently intense to cause darger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

X-radiation A highly dangerous intensity of X-rays may be emitted by tubes operating at voltages higher than approximately 5 kV. Adequate protection (X-ray shielding) for the operator is then necessary. The emisson intensity of X-rays may correspond to a value of voltage much higher than that expected from the actual value applied to the tube. Poor focusing may result in excessive X-radiation. This tube and accesscries are equipped with a lead shielding which under normal conditions reduces the radiation values below 0.75 mR/h, measured at a distance of 1 m from the tube assembly.

March 1985 125 ,. YK1263 YK1265

U.H.F. POWER KLYSTRONS

For u.h.f. band I V/V vision transmitters and sound transmitters. Metal -ceramic construction, four extema cavities, electromagnetic focusing and a high -stability dispenser type cathode. Suitable for vapour, vapour -condensation o water cooling. Comprising a non -intercepting annular beam control electrode (ABC) for low -voltage beam modulation.

QUICK REFERENCE DATA

Frequency range 470 to 810 MHz note 10 Output power as vision transmitter YK1263 40 and 55 kW YK1265 40, 55 and 60 kW Cooling vapour, vapour condensation, or water

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by d.c. notes Cathode dispenser type Heater voltage Vf 8.5V ±3 %

Heater current If 24 to 28 A 1 Cold heater resistance Rfo rt, 30 mil Waiting time 2 from cold, Vf = 0 V tw min. 300 s from black heat, Vf = 6 V tw min. 0 s

FOCUSING Focusing coil current 10 to 12 A Resistance of focusing coils

cold (20 °C) 7.2 to 9.5 S2 operating at an ambient temperature of 20 °C 11it

BEAM CONTROL 6, 7 The klystrons comprise a non -intercepting annular beam control (ABC) electrode for low -voltage beam modulation. See Fig. 7. Additionally the accelerator electrode voltage allows adjustment of the beam current between 0 and 100%.

GETTER -ION PUMP SUPPLY 3 Pump voltage, no-load condition 3 to 4kV Internal resistance of supply 300 kfl

IDecember 1985 127 YK1263 YK1265 -1- MECHANICAL DATA

Dimensions in mm

469,9

174

0282,6 iT mom 762 mum. Heater ra ;ram

127 ABC -electrode

42,2 VIEW X :1111!..7.77

127

1MM'11111.0n

127

1165

86,1

127

irx7tinal

Fig. 1.

128 May19851 U.H.F. power klystrons YK1263 YK1265

1788

408 282,6 - 152

connection for focusing coils

508 130

earth coon 6 tapped holes M6 on 266 mm pc dia

508 Va 721 719 Fig. 2.

December 1985 129 YK1263 YK1265

MASS AND DIMENSIONS Klystron net approx. 79 kg gross approx. 232 kg outline dimensions of packing (cm) 182 x 75 x 75

Cavities approx.45kg Magnet frame with coils approx. 230 kg

MOUNTING Mounting position: vertical with collector up. To remove the tube from the magnet frame a total free height of 3 m, excluding hoist, is required.

COOLING YK1263 Cavities 1, 2, 3 and 4, drift tubes 4 and 5 and cathode socket via manifold forced air, Ti max. 50 °C q m- 2 m3/min, Lp = 1600 Pa (16 mbar) YK1265 Cavities 1, 2, 3 and 4, drift tube 4 and cathode socket via manifold forced air, Ti max. 50 °C q =-- 3 m'imin, = 1600 Pa (16 mbar) Drift tube 5, seperate cooling forced air, Ti max. 50 °C, q == 3 m' /min, flow area =-- 50 cm' Cathode socket only, during black heat forced air, Ti max. 50 °C, q 0.15 m3/min Collector vapour with boiler TE111013, note 4 volume of water converted to steam: 27 cm'/min per kW collector dissipation resulting in 43 (2/min steam per kW co lector dissipation water or vapour condensation (with water jacket TE11948) q = 35 to 60 R/min, To max 90 °C, see Fig. 3. For 60 Q/min, = 100 kPa (1 bar)

130 December1985'1 U.H.F. power klystrons YK1263 YK1265

ACCESSORIES Correct operation can be guaranteed only if approved accessories are used. Collector radiation suppressor TE1221 Anode ring TE1141 Cathode ring TE1142B Spark gap TE1183 Set of connectors (heater, cathode, accelerator electrode, getter -ion pump) TE1146 Cavities 4 x TE1224

front panel controlled direct controlled

Inlet coupler and load coupler for cavities 2 and 3 3 x TE1226 3 xTE1226 and 3 x TE1226D

Output coupler, 3 1/8 inch, 90° elbow TE1227 Magnet frame with coils TE1222 Collector jacket for water or vapour condensation cooling TE1194B note 11 Boiler for vapour cooling TE11108 note 11 Tool set TE1190 Temperature sensor TEl Arc detector TE1107B Recommended circulators (optional) 470 to 600MHz 272216201551 (7100/IV-NI 600 to 800MHz 272216201561 (T100/V-N) 790 to 1000 MHz 272216203261 IT100/V-3-N)

yMay 1985 131 YK1263 YK1265 1

LIMITING VALUES (Absolute maximum rating system) Heater voltage max.9.5 V Beam voltage max. 28 kV Cold cathode voltage max. -30kV Beam current max. 7 A note 6 Body current max. 150 mA Accelerator electrode current max. 6 mA note 5 Collector dissipation max. 150kW Load VSWR max. 1.5 Temperature of tube envelope max. 175°C Static pressure in the cooling system TE11946 max. 600kPa (6 bar) ABC -electrode voltage with respect to cathode max. -1.4 kV

PERFORMANCE DATA of ABC -electrode min. typ. max. Capacity 80 90 100 pF

D.C. current at -1000 V' 1 mA

2. R.F. radiation R.F. power may be emitted through apertures other than the normal output coupling (for example r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

Instruction manual For detailed mounting and tuning instructions see klystron instruction manual, delivered with each tube.

The d.c. electrode current may rise up to max. 2 mA during life time. The applied modulator should be designed for an ABC -electrode current of at least 2 mA.

132 December1985-1 U.H.F. power klystrons YK1263 YK1265

TYPICAL OPERATING CONDITIONS (modulation electrode at cathode potential( As 40 kW vision transmitter notes Standard CCIR -G Channel 21 45 68 Output power, peak sync. 45 45 45 kW Beam voltage 21 22.5 24.5 kV Beam current 5.2 4.45 4.15 A 6,7

Accelerator to cathode voltage 19 17.5 16.5 kV 5 Body current without drive 8 5 5 mA at black level 60 30 30 mA

Focusing coil current 11 10.5 10 A

Drive power, peak sync. max. 20 10 10 W 8

Operating efficiency 41 45 44 ''/,

Bandwidth at -1 dB points 7 7 7 MHz 9

As 55 kW vision transmitter Standard RTMA-M and RTMA-M* Channel 14 45 69 Output power, peak sync. 58 58 58 kW Beam voltage 23 25 26 kV Beam current 6.0 5.05 4.85 A 6,7

Accelerator to cathode voltage 21.5 19 18.5 kV 5 Body current without drive 8 5 5 mA at 58 kW peak sync., black level 80 40 40 mA

Focusing coil current 11.5 11 10.5 A

Drive power, peak sync. 20 10 10 W

Operating efficiency 42 46 46 %

Bandwidth at -1 dB points 7 7 7 MHz 9

1..."December 1985 133 YK1263 YK1265

As 60 kW vision transmitter (YK1265 only) notes Standard M/G M/G M/G Channel 14/21 42/42 69/62 Output power, peak sync. 64 64 64 kW Beam voltage 24.5 25.5 26.5 kV Beam current 6.1 5.3 5 A 6,7 Accelerator to cathode voltage 21.5 20 18.5 kV 5 Body current without drive 8 7 5 mA at 64 kW peak sync., black level 80 60 40 mA Focusing coil current 11.5 11 10.5 A Drive power, peak sync. 20 10 10 W 8 Operating efficiency 43 47.5 48 %

Bandwidth at -1 dB points 7 7 7 MHz 9

As 8 kW FM sound transmitter Output power 9 9 9 kW Beam voltage 21 22.5 24.5 kV Beam current 1.15 1.0 0.95 A Accelerator to cathode voltage 7 6.5 6 kV 5 Focusing coil current 9 9 9 A Drive power 5 5 5 W 8

Bandwidth at -1 dB points 1 1 1 MHz

As 11 kW FM sound transmitter Output power 12 12 12 kW Beam voltage 23 25 26 kV Beam current 1.4 1.2 1.1 A Accelerator to cathode voltage 8 7.5 7 kV 7 Focusing coil current 9 9 9 A Drive power 5 5 5 W 8

Bandwidth at -1 dB points 1 1 1 MHz

As 12 kW FM sound transmitter Output power 13 13 13 kW Beam voltage 24.5 25.5 26.5 kV Beam current 1.4 1.3 1.2 A Accelerator to cathode voltage 8 7.5 7.5 kV 7 Focusing coil current 9 9 9 A Drive power 5 5 5 W 8

Bandwidth at -1 dB points 1 1 1 MHz

Standards: RTMA-M, RTMA-M and CCIR-G.

134 December19851 U.H.F. power klystrons YK1263 YK1265

As 60 kW vision transmitter (YK1265 only) notes Standard' M/G M/G M/G Channel 14/21 42/42 69/62 Output power, peak sync. 64 64 64 kW Saturated output power 68 68 68 kW Beam voltage 25 26 27 kV Beam current 6.3 5.5 5.25 A 6, 7 Accelerator to cathode voltage 22 20 19.5 kV 5 Body current without drive 8 7 5 mA at 64 kW peak sync., black level 80 60 40 mA

Focusing coil current 11 10.5 10 A Drive power, peak sync. 20 10 10 W 8

Saturated efficiency 43 47.5 48 % Bandwidth at -1 dB points 7 7 7 MHz 9

As 6 kW FM sound transmitter Output power 6.4 6 4 6.4 kW Beam voltage 25 26 27 kV Beam current 0.85 0 77 0.72 A Accelerator to cathode voltage 5.3 5 0 4.8 kV 5 Focusing coil current 10 9 5 9 A Drive power 5 5 5 W 8

CW operation for synchrotron radiation sources (YK1265 only) Frequency - 500 = 500 MHz Output power 52 42 kW

Beam voltage 23 21 kV Beam current 5.6 4.9 A

'Standards: RTMA-M, RTMA-M' and CCIR-G.

iJanuary 1986 135 YK1263 YK1265

7. A voltage divider for adjusting the beam current should be dimensioned on the basis of an accelerator electrode current of max. 1.5 mA. 8. The drive power is defined as the power delivered to a matched load. 9. Variation of the signal level between black and white at any siceband frequency may cause a reaction of the peak sync. level. Proper tube design limits this reaction to less than 0.5 dB. 10. For operation in the frequency range 810 to 860 MHz please contact tube manufacturer. 11. TE1110B with 1" inlet and steam outlet on top. TE1194B with two 1" tube fittings SWAGE LOCK SS -1610-1-16 at one side of the cooling jacket.

100

(*C) 90 - 0 max

60 Tax

10 vapour water vapour condensation' cooling

0,2 0,4 0,6 08 0 (l/min kW1

Fig. 3.

136 December1985. U.H.F. power klystrons YK1263 YK1265

72674971

upper limit.

lower limit -

0 0 10 20 30 accelerator to cathode voltage (kV /

Fig. 4.

/- iDecember 1985 137 YK1263 YK1265

50 V1.7333 Modulation electrode at cathode potential

a. C

typ.

min. 45

Fig. 5.

40 58 kW operation

35 470 500 600 700 600 860 f 1MHz1 14 27 42 52 69 US ,Channel 21 31 42 51 62 CC1R-G . number

vi.1116.47 Modulation electrode at cathode potential

typ

mm 45

Fig. 6.

64 kW operation, 40 YK 1265 only

35 470 500 600 700 800 860 f 1MHz1 14 27 42 52 69 US }Channel 21 31 51 62 CCIR-G number

138 December1985.1 U.H.F. power klystrons YK1263 YK1265

7288794 50 -Vm 1200V f.40

8 30 5

E 20

10 150 V

0 3 4 5 6 7 unmodulated beam current ( A I

Fig. 7 ABC -operation. Parameter: modulation voltage -VM (with respect to cathode).

IDecember 1985 139 _ YK1295 YK1296 YK1297

U.H.F. POWER KLYSTRONS

For u.h.f. band IV/V vision transmitters and sound transmitters. Metal -ceramic construction, four external cavities, electromagnetic focusing and a high -stability dispenser type cathode. Suitable for vapour, vapour -condensation or water cooling. Comprising a non -intercepting annular beam control electrode (ABC) for low -voltage beam modulation.

QUICK REFERENCE DATA

Frequency range YK1295 470 to 610 MHz YK1296 590 to 720 MHz YK1297 710 to 860 MHz Output power as vision transmitter 40 and 55 kW Cooling vapour, vapour condensation, or water

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by d.c. notes Cathode dispenser type Heater voltage Vf 8.5 V ±3 %

Heater current If 22 to 27 A 1 Cold heater resistance Rfo 30 m12 Waiting time 2 at Vf = 8.5 V twmin. 300 s at Vf = 6.0 V (black heat) tw min. 0 s

FOCUSING: electromagnetic Focusing coil current 9 to 12 A Resistance of focusing coils cold (20 °C) 7.2 to 9.5 R operating at an ambient temperature of 20°C < 11 SZ

BEAM CONTROL The klystron comprises a non -intercepting annular beam control (ABC) electrode for low -voltage beam modulation. See Fig. 5. Additionally the accelerator electrode voltage allows adjustment of the beam current between 0 and 100%.

GETTER -ION PUMP SUPPLY 3 Pump voltage, no-load condition 3 to 4kV Internal resistance of supply 300 kS2

IDecember 1985 141 YK1295 YK1296 YK1297

MECHANICAL DATA YK1295 Dimensions in mm

Getter -ionpump

4699 Heater

ABC -electrode VIEW X

TE 1111

Iniet4 Inlet

Section A -A A fi\ Outlet-I- 1- TOutlet Section B -B 152,4

Inlet - 7 Inlet- 38,1 )4.-/1. Section C -C 1 152,4 /\ Outlet-1- -Outlet- 73 Section D -D

130,2

Inlet

Section E -E

142 April 1985 YK1295 U.H.F. power klystrons YK1296 YK1297

YK1296, YK1297

Getter -tan pump

469,9

Heater

ABC -electrode VIEW X /4TE 1132 762 Inlet Inlet- 57,2

Section A -A A ci_-. 127 Outlet -4- Outlet-{ /-11 B Section B -B 127 0 -1" .t.

Inlet -- 74 Inlet- 63.5 1 Section C -C /---/ f c 1271165

Outlet 4 -A- Outlet - 78,1

Section D -D 127 .4"

130.2 Inlet Inlet - 122,5 Outlet - Section E -E E

Fig. 2. 010211110

1April 1985 143 YK1295 YK1296 YK1297

Mechanical outlines of trolley

Dimensions in mm

6 tapped holes M6 on 266 mm p c.dia

Water outlet 11/4 -16 UN

Water inlet 5/8- 24 UNEF

733

595/ 042 570 I *) 385

1173 I I165

590 40 -- 585-

720

172 6 Li

Fig. 3.

YK1295 = 570 mm. YK1296/1297 = 595 mm.

144 April1985-1 YK1295 U.H.F. power klystrons YK1296 YK1297

COOLING Cathode socket accelerator electrode air; q 0.15 m3/min, Ti max. 40 °C Collector vapour (with boiler TE1110), note 4 volume of water converted to steam: 27 cm3/min per kW collector dissipation resulting in 43 (2/min steam per kW collector dissipation water or vapour cordensation (with cooler TE11941 q = 35 to 60 k/min, To max 80 °C. Drift tubes water; rate of flow to drift tubes and collector connected in series q "-- 9 k/min, Ti max. 80 °C, = 200 kPa (2 bar) Cavities 3 and 4 forced air; q = 1.5 m3/min, = 250 Pa (2.5 mbar) Ti max. 45 °C

MASS AND DIMENSIONS Klystron

net approx. BO kg gross approx. 230kg outline dimensions of packing (cm) 182 x 75 x 75 Cavities approx. 45 kg Magnet frame with coils approx. 885 kg

MOUNTING Mounting position: vertical with collector up. To remove the tube from the magnet frame a total free height of 3.5 m, excluding hoist, is required.

PRODUCT SAFETY 1. X-radiation Correct operation of the tube can be guaranteed only if a set of accessories, approved by the tube manufacturer, is used. The operating tube generates X-rays which can penetrate the ceramic parts of the tube envelope. In order to reduce the radiation at any accessib,e points to an officially acceptable, non -dangerous level the tube must be shielded and any possible radiation path blocked by at least 1 mm of brass or an equivalent depth of non-magnetic X-ray abscrbing material. The proper use of accessories will provide the necessary shielding.

2. R. F. radiation R.F. power may be emitted through apertures other than the normal output coupling (for example r.f. leaks). This r.f. power may be sufficiertly intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

Instruction manual For detailed mounting and tuning instructions see klystron instruction manual, de.ivered with each tube.

-' 1-December 1985 145 YK1295 YK1296 YK1297

ACCESSORIES (note 5) A. Accessories required for first equipment YK1295 YK1296 YK1297 Collector radiation suppressor TE1111 TE1132 TE1195 Accelerator electrode ring TE1141 TE1141 TE1141 Cathode ring TE1142B TE1142B TE1142B Set of sealing rings TE1147 TE1147 TE1147 Magnet flux ring TE1138 TE1138 TE1138 Spark gap TE1140 TE1140 TE1140 Set of connectors (heater, cathode, acc. electrode, getter -ion pump) TE1146 TE1146 TE1146 Extension pipes 6x TE1133A 6x TE1133A 6x TE1133A for drift tubes 2x TE1133B 2x TE1133B 2x TE1133B Water interconnecting pipes between drift tubes 12 - T2 TE1134A TE1135A TE1135A 12 - T3 TE1134B TE1135B TE1135B T3 - T4 TE1134C TE1135C TE1135C T4 - T5 TE1134D TE1135D TE1135D Flexible water pipes between tube and boiler for vapour cooling TE1145A TE1145A TE1145A between frame and tube TE1145B TE1145B TE1145B tube outlet for water cooling TE1145C TE1145C TE1145C Boiler for vapour cooling TE1110 TE1110 TE1110 Or Cooler for water cooling TE1194 TE1194 TE1194 Cavities 3x TE1121D 3x TE1098A 3x TE1191A lx TE1121D lx TE1098D lx TE1191B Input coupler TE1122A TE1102 TE1102 Load coupler for cavities 2 and 3 2x TE1122B 2x TE1102 2x 7E1102 Blanking plates 3x TE1157 3x TE1157 3x TE1157 Output coupler for cavity 4 TE1123 TE1105 TE1196 Arc detector TE1107 TE1107 TE1107 Magnet frame with coils TE1108 TE1108 TE1108 Tool set TE1137 TE1137 TE1137

B. Accessories to be ordered separately when replacing equivalent other brand types Magnet flux ring TE1138 TE1138 Spark gap TE1140 TE1140 Set of connectors (heater, cathode, acc. electrode, getter -ion pump) TE1146 TE1146 TE1146

146 April19851 YK1295 U.H.F. power klystrons YK1296 YK1297

C. Spare and optional parts YK1295 YK1296 YK1297 Set of connectors (heater, cathode, acc. electrode, getter -ion pump) TE1146 TE1146 TE1146 Set of sealing rings TE1147 TE1147 TE1147 Water protection shield TE1139 TE1139 TE1139 Recommended circulators 470 to 600 MHz 2722 16201551 (T100/1V-N1 600 to 800 MHz 2722 16201561 (1100/V -N) 790 to 1000 MHz 2722 16203261 (T100/V-3-M

LIMITING VALUES (Absolute maximum rating system) Heater voltage max. 9.5 V Beam voltage max. 28 kV Cold cathode voltage max. -30 kV Beam current max. 7 A Body current max. 150 mA Accelerator electrode current max. 6 mA note 7 Collector dissipation max. 150 kW Load VSWR max. 1.5 Temperature oftube envelope max. 175 °C Static pressure in the cooling system max. 600 kPa 16 bar) note 6 ABC -electrode voltage with respect to cathode max. -1.4 kV

PERFORMANCE DATA of ABC -electrode min. typ. max. Capacity 80 90 100 pF

D.C. current at -1000 V' 1 mA

The d.c. electrode current may rise up to max. 2 mA during life time. The applied modulatorshould be designed for an ABC -electrode current of at least 2 mA.

December 1985 147 YK1295 YK1296 YK1297

TYPICAL OPERATING CONDITIONS As 55 kW/40 kW vision transmitter (standards: RTMA-M, RTMA-M' and CCIR-G) YK1295/YK1296 YK1297

Output power, peak sync. 58 58 45 58 58 45 kW Beam voltage 22.5 26 22.5 23.5 27 25.5 kV Beam current 6.4 4.85 3.8 5.9 4.9 3.9 A note 8 Accelerator to cathode voltage =22.5 -=18.5 =16 -=-21 =19 =16 kV Body current without drive 15 15 15 15 15 15 mA at black level 40 40 40 40 40 40 mA Focusing coil current 10.510.5 9.5 10.5 10.5 10 A Drive power, peak sync. Standard M G YK1295 - channel 14 21 10 6 6 - - W note 9 channel 37 38 7 4 4 - - W note 9 Y K1296 - channel 37 36 7 4 4 W note 9 channel 52 51 5 3 3 W note 9 YK1297 2 2 2 W note 9 Bandwidth at -1 dB points 8 8 8 8 8 8 MHz note 10 Differential gain 75 70 70 70 70 70 % note 11 Differential phase 6 10 10 10 10 10 deg note 11 Linearity 65 60 60 60 60 60 % note 12 Operating efficiency 40 46 46.5 42 44 45 % Saturation output power 63 60 46.5 60 60 46.5 kW Saturation efficiency 44 47.5 48 43 45 46.5 %

As 11 kW/8 kW FM sound transmitter Output power 12 12 9 12 12 9 kW Beam voltage 22.5 26 25.5 23.5 27 25.5 kV Beam current 1.5 1.2 1.3 1.5 1.2 1.3 A Accelerator cathode voltage 8.5 7.5 = 8 8.5 7.5 = 8 kV note 13 Focusing coil current 9 9 9 9 9 9 A Drive power 1.5 1.5 1.5 1.5 1.5 1.5 W note 9

Bandwidth at -1 dB points 1 1 1 1 1 1 MHz

Standards: RTMA M, RTMA-M' and CCIR-G.

148 December 1985 YK1295 U.H.F. power klystrons YK1296 YK1297

Notes

1.When switching on the heater voltage, the heater current must never exceed a peak value of 65 A. 2.In case of a mains failure an interruption up to 30 s can be tolerated without new waiting time. After min. 10 minutes of stand-by heating time at 6 V (black heat), the bean current may be switched on; the heater voltage must be increased to its nominal value of 8.5 V simultaneously. Continuous black heat periods should not exceed two weeks and should be separated by similar periods of rest or full operation. 3.To ensure that the klystron is always ready for operation, operate the ion getter pump at least every 6 months (preferably every 3 months) during storage. For details see klystron instruction manual. 4.In order to avoid corrosion of the cooling system, coolant water must be pure and deionized (resistivity min. 100 k-cm). 5.Correct operation of the tube can be guaranteed only if a set of accessories, approved by the tube manufacturer, is used. The operating tubegenerates X-rays which can penetrate the ceramic parts of the tube envelope. In order to reduce the radiation at any accessible points to an 3fficially admissible, non -dangerous level the tube must be shielded and any possible radiation path must be blocked by at least 1 mm of brass or an equivalent portion of non-magnetic X-ray absorbing material. The proper use of our accessory parts will provide the necessary shielding. 6.Static pressure in the body -cooling system and in the water-cooling jacket TE1194. 7.The accelerator electrode voltage must not be positive with respect to the body (ground). 8. If the accelerator electrode is connected to the body (ground) via 10 kS2 resistor, the beam current is within ± 5% of the value given in the graph of Fig. G. 9.The drive power is defined as the power delivered to a matched load. 10.Variation of the signal level between black and white at any sideband frequency may cause a reaction of the peak sync. level. Proper tube design limits this reaction to less than C'.5 dB. 11.Measured with a sawtooth signal from black level to peak white occuring at each line and superimposed colour subcarrier with a 10 % peak to peak amplitude. 12.Measured with a ten -step staircase signal from black level to peak with occur ng at each line. 13. A voltage divider for adjusting the beam current should be dimensioned on tie basis of an accelerator electrode current of max. 1.5 mA.

I December 1985 149 (K1295 YK1296 YK1297

'Z17437.1

11111111111111 MMMMMMM MMMMMMMMMMMM SENS MMMMM ENSOMMIION

Nommiro MMMMM Nome MMMMM u2=1 0== M11131111116111011111111MIII MMMMMMM NUMfirninmos NUMMI 11 MMMMM EMEU.

4 ra

rAl Fig. 4.

2 r. r,

0 10 20 30 accelerator to cat ode v0 tap I kV I

50 12115191. - Vm

1200 V .1 40 111 8 900

30 E 600V

20 300V

10 -150V

0 1. 5 6 7

unmodu lated beam current1 A I

Fig. 5 ABC -operation. Parameter: modulation voltage -VM (with respect to cathode).

150 April19851 YK1300 YK1301 YK1305

CONTINUOUS -WAVE HIGH -POWER KLYSTRONS

Water cooled, high efficiency, fixed frequency, continuous -wave h,gh-power klystrons in metal -ceramic construction, for use in scientific and industrial applications. The tubes have internal cavities, solenoid focusing, beam control by accelerator anode and a high stability dispenser -type cathode.

QUICK REFERENCE DATA

Centre frequency (fixed tuned) 499.7 MHz Bandwidth at saturation (-1 dB points) 2 MHz Output power YK1300 500 to 600 kW YK1301 600 to 800 kW YK1305 < 350 kW Cooling water

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by a.c. or d.c. Cathode dispenser type

min. typ. max. Heater voltage Vf 22 25 27 V Heater current If 20 23 25 A notes 1, 2 Cold heater resistance Rfo - 100 - mS1 Waiting time tw 15 - - minutes

FOCUSING: electromagnetic

Solenoid current 7 9 15 A Solenoid voltage 140 220 V Solenoid resistance 15 -

GETTER -ION PUMP SUPPLY Operating voltage 3 3.3 4 kV Operating current - 10-' 80 mA Internal resistance of power supply 25 300 - ki2

iNovember 1985 151 YK1300 YK1301 YK1305

MECHANICAL DATA

Dimensions in mm -3500

-3000

-2500

-2000

1500

1000

500

VX 722 723.1

Fig. 1.

152 March 1985 Continuous -wave high -power klystrons YK1300

Tube mounted in the mounting frame with solenoid.

- 4000

_TE 1163

F.K F - 3500

-3000

TE 1166 -2500

- 2000 TE 1164A

-1500 \e(-50

TE 1165 -1000 TE 1170

TE 1167

TE 1168/69 - 500

22526 3

Fig. 2.

IMarch 1985 153 YK1301 YK1305

MECHANICAL DATA (continued)

Tube mounted in the mounting frame with solenoid. Dimensions in mm

- 4000

TE 1163

F.K F 3500 31A 0 50

- 3000

TE 1166 2500

2000 TE 1164 B

1500 t\d'

050

TE 1165 1000 TE 1170

_ TE 1167

500 TE 1168/69 c7"3 2x 0 801 0 300 ,46

Fig. 3.

Drawing shows klystron and trolley without operational lead -shielding.

154 March 1985 YK1300 Continuous -wave high -power klystrons YK1301 YK1305

COOLING min. typ. max. Collector demineralized or distilled water with 10% stabilized glycol added YK1300, YK1301 750 900 1000 4/min note 3 YK1305 200 500 700 4/min note 3 pressure drop - 200 - kPa (= 2 bar) Body circuit I demineralized or distilled water with 10% stabilized glycol added 7 10 - 12/min note 3 pressure drop - 300 - kPa (= 3 bar) Body circuit II demineralized or distilled water with 10% stabilized glycol added YK1300, YK1301 20 25 - R/min YK1305 15 18 - R/min note 3 pressure drop - 300 - kPa (= 3 bar) Cathode socket and accelerator anode air 2 - - m3/min pressure drop - - 500 Pa (= 5 mbar) Output window air 0.6 1.2 - m3/min pressure drop - 9 - kPa (= 90 mbar) Inlet water temperature - - +50 °C Inlet air temperature +45 °C

MASS Net mass YK1300, YK1301, YK1305 400 kg Mounting frame with solenoid YK1300, YK1305 800 kg YK1301 900 kg Capability of hoist min. 600 kg

DIMENSIONS Tube and mounting frame see drawings Required ground clearance for lifting host min. 580 cm

MOUNTING vertical, cathode up

R.F. CONNECTORS Input N -type, female Output waveguide R5 (NR1800) mating flange UDR5

November 1985 155 YK1300 YK1301 YK1305

ACCESSORIES A. Tube parts Collector water cooling jacket note 4 Waveguide coupling iris note 4 Magnet for getter -ion pump (factory fitted)

B. Operational parts for first equipment Coaxial/waveguide transition, WR 1800 with 450 elbow YK1300 TE1164A note 5 YK1301, YK1305 TE1164B note 5 Window cooling air inlet TE1165 Accelerator anode ring (factory fitted) TE1173 Cathode ring TE1174A Corona protector TE1174B H.V. connection unit with R3 sockets YK1300 TE 1163A note 6 YK1301, YK1305 TE1163B note 6 Klystron trolley with waveguide support TE1167 Focusing coil unit YK1300 TE1166A YK1301, YK1305 TE1166B Water outlet collecting tube TE1168 Set of interconnecting water hoses TE1169 Connection cables, heater/cathode 2x TE1171A heater TE1171B accelerator anode TE1171C

C. Optional parts H.V. socket R3 4x TE1158 note 7 H.V. cable with R3 plugs, length 6 m 4x TE1159 note 7 length 9 m 4x TE1160 note 7 H.V. dummy plug R3 4x TE1161 note 7 Collector water cooling jacket TE 1170

D. Parts for handling note 8 Yoke for lifting TE1166 and TE1163 TE1175 Yoke for lifting and turning a klystron from any position TE1176 Supporting frame for storage and any movement of burnt -out or spare k I ystrons in any position other than vertical TE 1177 Trolley for transportation of a klystron in horizontal position without lifting gear TE1178

156 March19851 Continuous -wave high -power klystrons YK1300

LIMITING VALUES (Absolute maximum rating system)

Heater voltage max 10% above specified values Heater current Cathode voltage to body (ground) max. -65 kV Cold cathode voltage to body (ground) max. -75 kV Cathode current max 18A Accelerator anode voltage to cathode max 55 kV note 9 Cold accelerator anode voltage to cathode max. 65 kV Accelerator anode current max 10 mA Collector dissipation max 850 kW note 10 Dissipation body circuit I max. 10 kW

Dissipation body circuit II max 15 kW C.W. output power max 630 kW Load VSWR max. 1.2 note 12 Temperature rise, window cooling air. flow max. 30 K

TYPICAL OPERATING CONDITIONS 500 kW operation into matched load min. typ. max. Cathode voltage to body (ground) -60 -62 -63 kV Cathode current 4 14 15 A note 13 Input power, d.c. - 867 - kW Accelerator anode voltage to cathode 0 43 - kV note 13

Accelerator anode current - 1 5 mA C.W. output power, VSWR < 1.1 500 520 - kW Collector dissipation - 347 850 kW note 10 Efficiency 58 60 - % C.W. drive power - 25 50 W

600 kW operation into matched load Cathode voltage to body (ground) -62 -64 -65 kV Cathode current 4 15.9 16.5 A note 13 Input power, d.c. - 1017 - kW Accelerator anode voltage to cathode 0 47 - kV note 13

Accelerator anode current - 1 5 mA C.W. output power, VSWR 1.1 600 610 - kW Collector dissipation - 407 850 kW note 10 Efficiency 57 60 - % C.W. drive power - 25 50 W

November 1985 157

____ YK13O1

LIMITING VALUES (Absolute maximum rating system) Heater voltage }max. 10% above specified values Heater current Cathode voltage to body (ground) max. -77 kV Cold cathode voltage to body (ground) max. -85 kV Cathode current max. 18 A Accelerator anode voltage to cathode max. 65 kV note 9 Cold accelerator anode voltage to cathode max. 75 kV Accelerator anode current max. 10 mA Collector dissipation max. 850 kW note 10 Dissipation body circuit I max. 10 kW Dissipation body circuit II max. 15 kW C.W. output power max. 820 kW Load VSWR max 1.2 note 12 Temperature rise, window cooling air flow max. 30 K

TYPICAL OPERATING CONDITIONS 800 kW operation into matched load min. typ. max. Cathode voltage to body (ground) -75 -76 -77 kV Cathode current 4 17 18 A note 13 Input power, d.c. - 1300 - kW Accelerator anode voltage to cathode 0 47 50 kV note 13 Accelerator anode current - 2 5 mA C.W. output power, VSWR < 1.1 750 800 820 kW Collector dissipation - 500 850 kW note 10 Efficiency 60 61 - % C.W. drive power - 40 70 W

158 December 1985 Continuous -wave high -power klystrons YK1305

LIMITING VALUES (Absolute maximum rating system) Heater voltage max 10% above specified values Heater current Cathode voltage to body (ground) max -50 kV Cold cathode voltage to body (ground) max. -55 kV Cathode current max. 15 A Accelerator anode voltage to cathode max. 45 kV note 9 Cold accelerator anode voltage to cathode max. 50 kV Accelerator anode current max. 10 mA Collector dissipation max. 400 kW note 10 Dissipation body circuit I max. 6 kW Dissipation body circuit II max. 10 kW C.W. output power max. 370 kW Load VSWR max. 1.2 note 12 Temperature rise, window cooling air flow max. 30 K

TYPICAL OPERATING CONDITIONS 350 kW operation into matched load min. typ. max. Cathode voltage to body (ground) -47 -48 -49 kV Cathode current 4 12 13 A note 13 Input power, d.c. - 580 600 kW Accelerator anode voltage to cathode 0 36.5 - kV note 13

Accelerator anode current - 1 5 mA C.W. output power, VSWR <1.1 315 330 370 kW Collector dissipation - 230 400 kW note 10 Efficiency 55 58 - % C.W. drive power - 16 30 W

iNovember 1985 159 YK1300 YK13O1 YK1305

PERFORMANCE DATA Phase shift to cathode current < 20 °/A Phase shift to rel. cathode voltage < 20 °/% Phase shift to r.f. drive < 12 °/dB R.F. output to rel. cathode voltage 0.3 dB/%

Spurious noise amplitude

forf < 300 Hz < 3 %

for f =300 to 1000 Hz < 1 % forf > 1000 Hz < 0.5 %

Notes 1. When switching on the heater voltage, the heater current must never exceed a peak value of 65 A. 2. Required values are given with each tube.

3. For further recommendations please contact the tube manufacturer. 4. Separately shipped together with each tube and to be returnec together with each burnt outtube. 5. It is recommended to return the coaxial/waveguide transition together with burnt -out tube for inspection. 6. R3 sockets are only usable together with optional accessories TE1159 and TE1160. 7. Cable with R3 plugs on each end, to be fed into the R3 sockets of the H.V. connection unit TE 1163 and into R3 sockets TE 1158 applied to the power supply. Dummy plugs are provided for cable termination on H.V. test of the cable set. 8. Parts are needed for all handling operations at the site and are to be ordered once for the site. 9. The accelerator anode voltage may never become positive with respect to the body (ground). 10.It must be observed that for operation with reduced r.f. drive the maximum value for collector dissipation is not exceeded.

11 For reflections exceeding this value please contact the tube manufacturer. 12. The klystron should not be operated with a cathode current below 4 A except for switching purposes.

160 November 1985 YK1300 Continuouswave high -power klystrons YK1301 YK1305

INSTALLATION AND OPERATION REQUIREMENTS A. Required interlocks

1. Fast switch -off of the drive power within 10 ms has to be done if the arc detector and/or r.f. reflection indicator is activated. An arc detector must be provided at the knee of the output wave - guide.

2.A fast switch -off of the beam supply nas to be provided when one of the following situations occurs: a) the beam current increases rapidly, b) the solenoid current deviates by more than i 5% from the adjusted value. The switching sensors and the discharge facilities for the power supply must be designed so that a copper wire of 0.35 mm diameter, connected to the power supply instead of the klystron (length approx. 1 cm/kV), will not be destroyed, if the full operating voltage is switched on and applied to the wire.

3.The mains for the beam power supply has to be switched off within 100 ms when one of the following situations occur: a) the beam current either exceeds the limiting value or increases by more than 30% or max. 2 A above the adjusted value, b) the pump current exceeds 10 pA, c) the monitored temperature differences between inlet and outlet in the collector and/or body cooling circuits are too high; max. values permitted: collector AO = 15 K body circuit I AO = 15 K body circuit II AO = 15 K d) the water flow of the collector and body cooling circuits decreases below the required minimum value, e) the air flow for the r.f. window and cathode cooling decreases below the required minimum value.

4.Switch -off the heater voltage for pump current > 4 mA. Restarting is not allowed within 10 s of any interruption.

B. Switching -on and off sequence Switching -on sequence

1. Cathode cooling on. 2. Getter -ion pump supply on. 3. Check that the pump current is < 10 pA. 4. Heater voltage supply on. 5. Wait for preheating time (min. 15 minutes). 6. Cooling air r.f. window on. 7. Cooling body circuits I and II on. 8. Collector cooling supply on. 9. Solenoid current supply on. 10. Check that the heater current has reached the adjusted value ± 0.5 A. 11. R.F. drive on. 12. Beam supply on. Switching -off sequence

1. Beam voltage supply off. 2. All other supplies and cooling circuits off.

iNovember 1985 161 YK1300 YK1301 YK1305

C. Radiation dangers R.F. radiation R.F. power may be emitted not only through the normal output coupling but also through other apertures (for example, r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

X-radiation A highly dangerous intensity of X-rays may be emitted by tubes operating at voltages higher than approximately 5 kV. Adequate protection (X-ray shielding) for the operator is then necessary. The emission intensity of X-rays may correspond to a value of voltage much higher than that expected from the actual value applied to the tube. Poor focusing may result in excessive X-radiation. These tubes and accessories are equipped with a lead shielding which under normal conditions reduces the radiation values below 0.75 mR/h, measured at a distance of I m from the tube assembly.

162 March1985.1 YK1302

CONTINUOUS -WAVE HIGH -POWER KLYSTRCN

Vapour cooled, high efficiency, fixed frequency, continuous -wave high -power klystrons n metal -ceramic construction, for use in scientific and indus-.rial applications. The Tubes have internal cavities, solenoid focusing, beam control by accelerator anode and a high stability d spenser-type cathode.

QUICK REFERENCE DATA

Centre frequency (fixed tuned) 508.6 MHz Bandwidth at saturation (-1 dB points) 2 MHz Output power 800 kW Cooling vapour

This data must be read in conjunction wish GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by a.c. or d.c. Cathode dispenser type notes

min. typ. max. Heater voltage Vf 22 25 27 V Heater current If 20 23 25 A 1, 2 Cold heater resistance Rfo - 100 - mC2. Waiting time tw 15 - minutes

FOCUSING: electromagnetic Main focusing section

Solenoid current 7 8 A 2, 3 Solenoid voltage 500 600 V Solenoid resistance 80

Prefocusing coil

Solenoid current 5 7 A 2,3 Solenoid voltage 30 40 V

Solenoid resistance 6 12

GETTER -ION PUMP SUPPLY

Operating voltage 3 3.3 4 kV Operating current 13.3 80 mA

Internal resistance of power supply 25 300 1(12

November 1985 163 YK1302

MECHANICAL DATA

Dimensions in mm 4

1299 Collector

Connectors for r.f. and body cooling R F window section r. 4 14 342

getter Ion pump Connector for getter -Ion pump

3226 1604

Gun section

I 323

Vl 727804

Fig. 1.

184 March1986.1 Continuous -wave high power klystron YK1302

Tube mounted in the mounting frame with solenoid.

4000

3500

3000

R F output section 2500

2000

1500

1000 Oil tank including 00 gun socket 500 0 u-CP".

v0221106

Fig. 2.

Drawing shows klystron and trolley without operational lead shielding.

November 1985 165 YK1302

COOLING min. typ. max. Vapour cooling of collector demineralized or distilled water 50 100 - Wrnin note 4, 5 pressure drop at 100 ft/min 20 kPa 1= 200 mbar) Water cooling of body circuit I demineralized or distilled water with 10% stabilized glycol added 10 14 - t/min note 5 pressure drop - 300 - kPa (= 3 bar) Water cooling of body circuit II demineralized or distilled water with 10% stabilized glycol added 15 20 - lamin note 5 pressure drop - 300 - kPa I= 3 bar) Output window air 0.6 1.2 - m3/min pressure drop - 9 - kPa 1= 90 mbar) Inlet water temperature - - +50 °C Inlet air temperature - - +45 °C Cathode socket and accelerator anode under oil

MASS Net mass YK1302 500 kg Mounting frame with solenoid 1400 kg Boiler 150 kg Capability of hoist min. 600 kg

DIMENSIONS Tube and mounting frame see drawings Required ground clearance for lifting hoist min. 650 cm

MOUNTING vertical, collector up

R.F. CONNECTORS Input N -type, female Output waveguide R5 (WR1800) mating flange UDR5

166 November 1985 Continuous -wave high -power klystron YK1302

ACCESSORIES Klystron trolley with waveguide support TE1312 Focusing coil unit TE1322 Oil tank TE1332 Coaxial/wavegu ide transition, W R 1800 TE1342A Lead shielding TE1362 Trolley for transportation of a klystron in horizontal position without lifting gear TE 1372A Supporting frame for storage and any movement of burnt -out or spare klystrons in any position other than vertical TE1372B Handling equipment TE1382 Boiler TE1392

(November 1985 167 YK1302

LIMITING VALUES (Absolute maximum rating system) Heater voltage max. 10% above specified values Heater current .f Cathode voltage to body (ground) max. -85 kV Cold cathode voltage to body (ground) max. -90 kV Cathode current max. 20 A Accelerator anode voltage to cathode max. 65 kV note 6 Accelerator anode current max. 5 mA Collector dissipation note 7 output power > 200 kW max. 750 kW output power < 200 kW max. 500 kW Dissipation body circuit I max. 15 kW Dissipation body circuit II max. 10 kW C.W. output power max. 850 kW Load VSWR max. 1.2 note 8 Temperature rise, window cooling air flow max. 30 K

TYPICAL OPERATING CONDITIONS 800 kW operation into matched load min. typ. max. Cathode voltage to body (ground) -76 -80 - kV Cathode current - 16.5 - A note 9 Input power, d.c. - 1322 - kW Accelerator anode voltage to cathode - 52 - kV note 9 Accelerator anode current - 1.5 - mA C.W. output power, VSWR <1.1 - 800 - kW Collector dissipation - 522 - kW note 7 Efficiency 60 60.5 - % C.W. drive power - 60 80 W

PERFORMANCE DATA Harmonic content with respect to fundamental 2nd order max. -25 dB 3rd order max. -25 dB Spurious noise amplitude

for f < 300 Hz 1 %

for f = 300 to 1000 Hz 1 %

for f > 1000 Hz < 0.5 %

168 December19851r Continuous -wave high -power klystron YK1302

Notes 1. When switching on the heater voltage, the heater current must never exceed a peak value of 65 A. 2. Required values are given with each tube. 3. Further adjustment according to operating instructions. 4. Volume of water converted to steam: 27 cm'/min per kW collector dissipation in 43 4/min steam per kW collector dissipation. 5. For further recommendations please contact the tube manufacturer. 6. The accelerator anode voltage may never become positive with respect to the body (ground). 7. It must be observed that for operation with reduced r.f. drive the maximum value for collector dissipation is not exceeded. 8. For reflections exceeding this value please contact the tube manufacturer. 9. The klystron should not be operated with a cathode current below 4 A except for switching purposes.

.1 November 1985 169 YK1302

INSTALLATION AND OPERATION REQUIREMENTS A. Required interlocks 1. Fast switch -off of the drive power within 30 ms has to be done if the arc detector and/or r.f. reflection indicator is activated. An arc detector must be provided at the knee of the output wave guide. 2.A fast switch -off of the beam supply has to be provided when one of the following situations occurs: a) the beam current increases rapidly, b) the solenoid current deviates by more than ± 5% from the adjured value. The switching sensors and the discharge facilities for the power supply must be designed so that a copper wire of 0.35 mm diameter, connected to the power supply instead of the klystron (length approx. 1 cm/kV), will not be destroyed, if the full operating voltage is switched on and applied to the wire. 3.The mains for the beam power supply has to be switched off within 100 ms when one of the following situations occur: a) the collector temperature monitor (with internal thermocouple) is activated) T = max. 150 °C ), b) the monitored temperature differences between inlet and outlet in the collector and/or body cooling circuits are too high: max. values permitted: body circuit I JO = 15 K body circuit II 40 = 15 K c) the beam current either exceeds the limiting value or increases by more than 30% or max. 2 A above the adjusted value, d) the water flow of the body cooling circuits decreases below the required minimum value, e) the air flow for the r.f. window cooling decreases below the required minimum value,

f) the thermocouple temperature at the inner conductor of t'le output window exceeds 90 °C, g) the pump current exceeds 10 pA.

Restarting is not allowed within 10 s of any interruption.

B. Switching -on and off sequence Switching -on sequence 1. Getter -ion pump supply on. 2. Check that the pump current is < 10 pA 3. Heater voltage supply on. 4. Wait for preheating time (min. 15 minutes). 5. Cooling air r.f. window on. 6. Cooling body circuitsI and II on. 7. Collector cooling supply on. 8. Solenoid current supply on. 9. Check that the heater current has reached the adjusted value ±0.5 A. 10. R.F. drive on. 11. Beam supply on. Switching -off sequence 1. Beam voltage supply off. 2. All other supplies and cooling circuits off.

170 November 1985 Continuous -wave high -power klystron YK1302

C. Radiation dangers R.F. radiation R.F. power may be emitted not only thrcuch the normal output c3upling but also through other apertures (for example, r.f. leaks). This r.. power may be sufficiertly intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

X-radiation A highly dangerous intensity of X-rays may be emitted by tubes operating at voltages higher than approximately 5 kV. Adequate protection (X-ray shielding) for the operator is then necessary. The emission intensity of X-rays may correspond to a value of voltage much higher than that expected from the actual value applied to the tube. Poor focusing may result in excessive X-radiation. This tube and accessories are equipped with a lead shielding which under normal conditions reduces the radiation values below 1 mR/h, measured at a distance of 1 m from the tube assembly.

November 1985 171 MI. YK1350

CONTINUOUS -WAVE HIGH -POWER KLYSTRON

Water cooled, high efficiency, fixed frequency, continuous -wave high -power klystron in metal -ceramic construction, for use in scientific and industrial applications. The tube has internal cavities, solenoid focusing, beam control by modulation anode and a high stability dispenser -type cathode.

QUICK REFERENCE DATA

Centre frequency (fixed tuned) 352.21 MHz Bandwidth for 1dB drop in output power ± 0.5 MHz

Output power 1 MW Cooling water

This data must be in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by a.c. or d.c. Cathode dispenser type

min. typ. max. Heater voltage Vf 22 25 27 V Heater current If 20 23 25 A Cold heater resistance Rfo 100 - rn52 Waiting time tw 15 minutes

FOCUSING: electromagnetic Solenoid current 8 10 12 A Solenoid voltage 200 250 V Solenoid resistance 20 -

GETTER -ION PUMP SUPPLY " Operating voltage 3 3.3 4 kV Operating current 10' 80 mA Internal resistance of power supply 25 300

The tube is equipped with two ion getter pumps which can be operated individually or in a parallel arrangement at one power supply.

November 1985 173 3z0 DimensionsTubeMECHANICAL mounted in mm in DATA the mounting frame with solenoid. COC-1; 4015 1200 192 II". 400-0,1 1645±30 F L - - - I-i-1=r - I -I -1 - L - -1_- j .= L 4 _ A 455±30 2070 3790 1000900 Fig. 1. IIX 722 732 I Continuous -wave high -power klystron YK1350

COOLING min. typ. max. Cooling of collector and any body is achieved by filterd soft water. Pressure in any cooling water circuit - 700 kPa (=7 bar) Pressure drop - 300 kPa (=3 bar) Collector cooling water flow rate 800 1000 1200 12/min inlet water temperature - +20 +75°C outlet water temperature - +30 +90°C Body circuit I cooling water flow rate 15 20 25 4/min inlet water temperature - +20 +40 °C outlet water temperature - +40 +60 °C Body circuit II cooling water flow rate 15 20 25 12/min inlet water temperature - +20 +40 °C outlet water temperature - +40 +60 °C Output window

air 1 - m3/min pressure drop 15 - kPa (=150 mbar)

MASS Mass of complete assembly without demountable X-ray shield max. 3000 kg

DIMENSIONS of complete assembly Length approx. 4 kg Height approx. 1.9 m

Width approx. 1 m

MOUNTING horizontal

COOLING WATER CONNECTORS Body circuits I and II Walther series 0 - Type 4 (NW12) Collector Sandvik FCL-316L-76, 1 -S -V

R.F. CONNECTORS Input female connector, 50 11, type N Output WR2300 waveguide

iMarch 1985 175 YK1350

ACCESSORIES Transportation and operation frame TE1351A Focusing coil unit I TE1351B Focusing coil unit II TE1351C Coaxial/waveguide transition, WR2300 (R3) TE1352 Waveguide support TE1353 Collector cooling jacket I TE1354A Collector cooling jacket II TE 1354B Cooling water collector TE 1355A Interconnecting hoses 2 x TE1355B H.V. oil tank TE 1356 Mounting rack TE 1359

Fig. 2.

176 November 1985 Continuous -wave high -power klystron YK1350

LIMITING VALUES (Absolute maximum rating system) Heater voltage max. 10% above specified values Heater current Cathode voltage to body (ground) max. -95 kV Cathode current max. 25 A Modulation anode current max. 10 mA R F. drive power max. 150 W C.W. output power max. 1.1 MW Load VSWR max. 1.3 Body dissipation max. 20 kW Collector dissipation max. 900kW

TYPICAL OPERATING CONDITIONS 1 MW operation into matched load typ. Input power, d .c. 1470 kW R.F. drive power 90 W Collector dissipation 460 kW Body dissipation 10 kW C.W. output power 1000 kW Efficiency 68 % Beam voltage 90kV Beam current 16.3 A

PERFORMANCE DATA Phase shift to cathode current < 15°/A Phase shift to rel. cathode voltage < 15 (3/% Phase shift to r.f. drive < 10°/dB R.F. output to rel. cathode voltage < 0.2dB,1% Signal-to-noise ratio at saturation 60dB Harmonic levels to fundamental at saturation 30 dB Ratio of fundamental to other discrete frequencies within bandwidth at saturation 70 dB

1600 kW for 1s. can be tolerated with reduced drive.

1November 1985 177 YK1350

INSTALLATION AND OPERATION REQUIREMENTS A. Required interlocks 1. Fast switch -off of the drive power within 10 ms has to be done if the arc detector and/or r.f.

reflection indicator is activated. An arc detector must be provided at the knee of the output waveguide. 2. A fast switch -off of the beam supply has to be provided when one of the following situations occurs: a) the beam current increases rapidly, b)the solenoid current deviates by more than ±5% from the adjusted value. The switching sensors and the discharge facilities for the power supply must be designed so that a copper wire of 0.35 mm diameter, connected to the power supply instead of the klystron (length approx. 1 cm/kV), will not be destroyed, if the full operating voltage is switched on and applied to the wire. 3. The mains for the beam power supply has to be switched off within 100 ms when one of the following situations occur: a) the beam current either exceeds the limiting value or increases by more than 30% or max. 2 A above the adjusted value, b)the pump current exceeds 10 µA. c)the monitored temperature differences between inlet and outlet in the collector and/or body cooling circuits are too high, d)the collector temperature monitor (with internal thermocouple) is activated (switch -off value adjustable between 30 and 60 K above the water inlet temperature), e)the water flow of the collector and body cooling circuits decreases below the required minimum value, f)the air flow for the r.f. window and cathode cooling decreases below the required minimum value. 4. Switch -off the heater voltage for pump current > 4 mA. Restarting is not allowed within 10 s after any interruption.

B. Switching -on and off sequence Switching -on sequence 1. Getter -ion pump supply on. 2. Check that the pump current is < 10 pA. 3. Heater voltage supply on. 4. Wait for preheating time (min. 15 minutes). 5. Cooling air r.f. window on. 6. Cooling body circuits I and II on. 7. Collector cooling supply on. 8. Solenoid current supply on. 9. Check that the heater current has reached the adjusted value ± 0.5 A. 10. R. F. drive on. 11. Beam voltage supply on. Switching -off sequence 1. Beam voltage supply off. 2. All other supplies and cooling circuits off.

I178 November 1985 Continuous -wave high -power klystron YK1350

C. Radiation dangers R. F. radiation R.F. power may be emitted not only through the normal output coupling but also through other apertures (for example, r.f. leaks). This r.f. power may be sufficiertly intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly. The r.f. radiation 1 m from any part of theI yst r o n at1 MW output power is max. 0.1 mW/cm2 .

X-radiation Due to the high accelerating voltage, the klystron generates a high level of X-rays which is reduced by the supplied shielding plates of the focus mount and the H.V. oil container. Neverthe ess the complete assembly has to be shielded additionally curing operation in order to reduce the radiation to a non - dangerous level. The tube manufacturer recommends a "lead garage", as shown in the drawing Fig. 3. Though the overall dimensions are not critical, itis essential, that eny possible raciation path is blocked by at least 2 mm of lead sheets.

LEAD GARAGE Dimensions in mm

I320

Fig. 3.

The "lead garage" will not be supplied by the tube manufacturer.

November 1985 179 a

_ YK1510 YK1511 YK1512

PULSED POWER KLYSTRONS

Fixed frequency 20 MW pulsed power amplifier klystrons in metal -ceramic construction with 5 internal cavities, electromagnetic focusing, continuously operating getter -ion pump. Coaxial input connector and S -band output waveguide fitted with a ceramic window. Water cooling system for r.f. waveguide and window, collector and body. Intended for use in long-range radar transmitters.

QUICK REFERENCE DATA

Operating frequency YK1510 S -band, the klystrons are factory tuned YK1511 to the specified frequency range YK1512 R.F. output power peak > 20 MW average > 20 KW Duration of r.f. pulse (-3 dB down) 4 ps Gain 44dB

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING, indirect by a.c. or d.c. Heater voltage VF 15 to 30 V Heater current IF 20 to 30 A Heater supply current at switch -on; the surge current must never exceed a peak value of 50 A. Resistance of heater cold Rfo> 0.125 S2 hot rf 0.9 to 1.1 S2 Waiting time tw min. 12 min

At least one point in the band. The exact value is marked on each tube test report. During operation the heater voltage may not fluctuate more than ±5 %.

IDecember 1985 181 YK1510 YK1511 YK1512

MECHANICAL DATA 0113

Dimensions in mm T

t 0230

0130

995 915 358 356 1250 max

8190,15 ;--4 189,8 0 200 0187 Bearing surface

469 463 oo- 0180

115

047 Heater connection 084 Cathode -heater connection I

3 tapped holes MIO 308 on 210 p.c.dia max

RF input

Getter -ion pump connector

Water inlet 312 308 041 max 547 Fig. 1 544 4 V X 722662'

182 December 1985 YK1510 Pulsed power klystrons YK1511 I YK1512 MASS (net) approx. 70 kg

MOUNTING Mounting position: vertical with collector up

GETTER -ION PUMP POWER SUPPLY Pump voltage 4.5 to 5.5 kV Supply current tube operating max. 50 µA tube turned off max. 200 mA

ELECTROMAGNET Current I1, 12, 13 max. 175 A

Impedance of each coil (20 °C) 0.08 SZ

COOLING Collector, body and window" min. max. Cooling -water inlet temperature 60 °C Cooling -water flow 10 t/min Cooling -water inlet pressure 1000 kPa (= 10 bar) Cooling -circuit pressure drop 600 kPa (=6 bar)

Electromagnet min. max. Water flow 13 4/min Water inlet pressure 1000 kPa (= 10 bar) Water inlet temperature 60 °C

By means of a single water circuit.

1December 1985 183 YK1510 YK1511 YK1512

LIMITING VALUES (Absolute maximum rating system) Beam voltage, peak max. 270kV Beam current, peak max. 275A R.F. input power peak max. 5kW average max. 10 W R.F. output power peak max. 23 MW average max. 23 kW Load VSWR max. 1.4 Collector dissipation max. 80 kW Voltage pulse duration (measured at 70 %) max. 6 ps Duty factor max. 0.003 Pressure on the output window max. 1300 kPa (= 13 bar) min. 1100 kPa (= 11 bar)

2. R.F. radiation R.F. power may be emitted through apertures other than the normal output coupling (for example r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

184 December 1985 YK1510 Pulsed power klystrons YK1511 ) YK1512 TYPICAL OPERATING CONDITIONS Measured under matched load conditions (VSWR < 1.1) Operating frequency' S-Baid Bandwidth (-1 dB) 100 MHz Beam voltage 240 kV Beam current 254 A

R.F. input power, peak 1 kW

Operating mode A B C Output power peak 20 10 10 MW average 20 20 10 kW R.F. pulse duration (-3 dB) 4 4 4 µ5 Pulse repetition rate 250 500 250 Hz Duty factor 0.001 0.002 0.001 Gain 44dB

Efficiency > 30 % Perveance 2.0 to 2.3µA V-3/2

The tube is tuned to a fixed frequency at the factory.

1 December 1985 185 1

DEVELOPMENT DATA Th,s data sheet contains advance information and YK1600 speolications are subject to change onthout notice.

PULSED POWER KLYSTRON

Fixed frequency, pulsed power klystron it metal -ceramic construction for S -band with 5 internal cavities, electromagnetic focusing, continuously operating getter -ion pump. Coaxial input connector and r.f. output split into two parallel waveguide arms with twc r.f. ceramic windows. Water cooling systems for r.f. windows, collector and body. Intended for use for linear particle accelerator applications.

QUICK REFERENCE DATA

Frequency (fixed tuned) f 2998.5 MHz B.F. pulse width (at -3 dB) 4.5ps R.F. output power peak Wop ,>.-35 MW average Wo > 15.75 kW Gain G 52 dB

Efficiency n . .>- 45 %

This data must be read in conjunction with GENERAL OPERATIONAL RECOMMENDATIONS for KLYSTRONS.

HEATING: indirect by a.c. Cathode long life oxide type min. typ. max. Heater voltage Vf 17 20 25 V Heater current If 18 21 24 A Cold heater resistance (20 °C) Rfo 125 - mt2 Waiting time tw 15 minutes

GETTER -ION PUMP SUPPLY Pump voltage 5 kV

The actual value is marked on each tube test report.

April 1985 187 1 YK1600

MECHANICAL DATA

Dimensions in mm Collector water cooling outlet M22.13 10i 121 OF -output - 256 Collector water cooling inlet M22.1.5 10i 121

OF -input

1177 1167 Getter -ion -pump

1685 moo 549

_ _ setting Anode pole area piece

420

510

Cathode/ heater contact 11. .0-0200I-Healer contact 01 47.5 OF output .183,5 Body water cooling inlet Body water cooling outlet 0185-.0 M22.1.5 10i 12) M22 1.5 10 1121 752 2

Fig. 1.

188 April1985..1 Pulsed power klystron YK1600

COOLING min. typ. max. Collector demineralized or distilled water with 10% stabilized glycol added 60 - V/min pressure drop 70 - kPa (= 0.7 bar) Body circuit demineralized or distilled water with 10% stabilized glycol added 10 - 12/min pressure drop 170 - kPa (= 1.7 bar) Focusing coils demineralized or distilled water with 10 % stabilized glycol added 100 - kPa I bar)

MASS Net mass YK1600, incl. combiner 120 kg Magnet trolley 450kg X-ray shield collector 170 kg X-ray shield body 300 kg

DIMENSIONS Tube and mounting frame see drawing

MOUNTING vertical, cathode down

R.F. CONNECTORS Input N -type, female Output waveguide, LI L -Flange V.W. 31 1240-2

CONNECTOR GETTER -ION PUMP HN-type, female

ACCESSORIES R.F. power combiner TE1610 Focusing magnet TE1612 Counter coil TE1613 X-ray shield for body 7E1620 X-ray shield for collector TE1621 Transport trolley klystron TE1630 Lifting yoke for klystron TE1631 Lifting device for collector shield TE 1632 Lifting device for magnet TE1633 Magnet trolley TE1634

IApril 1985 189 YK1600

LIMITING VALUES (Absolute maximum rating system) Heater voltage max. 25 V Heater current max. 24A Cathode voltage, peak max. 300 kV Cathode current, peak max. 300A Collector dissipation max. 80kW R.F. drive power peak max. 1000 W average max. 10 W R.F. pulse width max. 6vs N.V. pulse width max. 7 IA Load VSWR for normal operation max. 1.15 permissable value max. 1.5 Pressure on r.f. output windows SF6 max. 550 kPa (5.5 bar)

Without destruction of the tube.

190 April19851 Pulsed power klystron YK1600

TYPICAL OPERATING CONDITIONS Frequency 2998.5 MHz Heater current 21 A Heater power 420 W Preheating time cathode 15 minutes Supply voltage of getter -ion pump 5 kV Load VSWR 5 1.04 Cathode voltage, peak 270 kV Cathode current peak 280 A Bandwidth (-1dB) > 10 MHz Perveance 2 pA/V32 R.F. drive power, peak 175 W R.F. pulse width at -3 dB 4.5 ps Pulse repetition rate 100 Hz Pressure on r.f. output windows SF6 550 kPa (5.5 bar) R.F. output power peak 35 MW average 15.75 kW Gain 53 dB

Efficiency > 45 % Dissipation on klystron body < 2 kW

PRODUCT SAFETY R.F. radiation R.F. power may be emitted not only through the normal output coupling but also through other apertures (for example, r.f. leaks). This r.f. power may be sufficiently intense to cause danger to the human body, particularly to the eyes. Such radiation may be increased if the tube is functioning incorrectly.

X-radiation A highly dangerous intensity of X-rays may be emitted by tubes operating at voltages higher than approximately 5 kV. Adequate protection (X-ray shielding) for the operator is then necessary. The emission intensity of X-rays may correspond to a value of voltage much higher than that expected from the actual value applied to the tube. Poor focusing may result in excessive X-radiation. This tube and accessories are equipped with a lead shielding which under normal conditions reduces the radiation values below 2.5 mR/h, measured at a distance of 0.4 m from the tube assembly.

April 1985 191 INDEX

INDEX OF TYPE NUMBERS

type Page type page

YK1001 21 YK1250 117 YK1002 21 YK1263 127 YK1110 35 YK1265 127

YK1151 41 YK1295 141 YK1296 141 YK1190 63 YK1297 141 YK1191 63 YK1192 63 YK1300 151 YK1301 151 YK1198 75 YK1305 151

YK1210 83 YK1302 163

YK1220 89 YK1350 173 YK1223 YK1510 181 YK1230 99 YK1511 181 YK1233 99 YK1512 181

YK1240 109 YK1600 187

192 December1985-1 NOTES } NOTES

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Amperex Electronic Corporation \ NORM .\ \1[1:1( AN rliI 15 \WA

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